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An Overview of Esperanto's Word Building System

16:00EsperantoTranscribed Jul 22, 2026
0:00

Felichan zamantagon.

0:02

I've already said before on this channel

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that I'm quite fond of Espiranto's word

0:06

building system as it allows someone to

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become highly functional in the language

0:09

with only a few hundred rude words. I'd

0:12

say between 500 and 900 without

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sacrificing the ability to be precise

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and use a rich vocabulary the way some

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other constructed languages do. As a

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bonus, many of the words you can create

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with the word building system don't have

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clear equivalents in English. And all

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you really need to do to learn it is

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learn the general meaning of each of the

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prefixes and suffixes and pick up the

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details of how to use them through

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input. That's how I learned it. This

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video isn't necessarily meant to teach

0:38

you the word building system. In fact,

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it might be more confusing than helpful.

0:43

We already have enough resources for

0:44

learning the language anyways. What we

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really need is more actual content in

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it. Rather, this video is meant to

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showcase the system in more detail for

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people who are curious about how it

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works, even if they choose not to learn

0:56

the language. Let's get started.

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There are four part of speech endings in

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Espirano. O for nouns, A for adjectives,

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E for verbs in dictionary form, and F

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for adverbs.

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Each individual Espiranto root also has

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a basic part of speech, putting it in

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what I will call its root class. For

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example, the root munch means eat. So

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it's in the verb root class. The root

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bon means good. So it's in the adjective

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root class. And the root means city. So

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it's in the noun root class. If a root

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is put together with a part of speech

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ending that corresponds with its root

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class, there's no change in meaning.

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It's just a bit of redundancy. Thus,

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mangi still means to eat, bona still

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means good, and urb still means city.

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When the root class matches the part of

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speech ending, I will add a slash in

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between it and the root. Knowledge of

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the root class becomes important when

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you want to change the part of speech

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ending. When you take a root in the

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adjective root class and give it a noun

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ending, it can mean either the property

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described by the adjective or a thing

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that can be described by the adjective.

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So starting from the word bona, the word

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bono can mean either goodness or a good

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thing. If you'd like to disambiguate,

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you can use the suffixo for the property

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and the suffix a for the object. When

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you give it a verb ending, it's

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basically just an abbreviation of to be

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the adjective. Bony just means to be

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good. Do note that using this phrasing

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instead of the more typical estona can

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sometimes carry a poetic or emphatic

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connotation, which enables you to do

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different things. For example, rapidi

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can mean to be fast, but in a full

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sentence, if you specify a direction, it

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means to rush. That's not something you

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can do with a typical estrapida. When

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you take a root in the verb root class

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and give it a noun ending, it can mean

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either the action itself or an object

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related to its concrete manifestation.

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That sounds kind of weird, doesn't it?

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So, here's some examples. From mangi, we

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can create mangjo, which can mean the

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action of eating, but more often means a

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meal. From consti to build, we create

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consto, which can be the action of

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building or a building itself. From

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kanti to sing, we create canto which

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means the action of singing or a song.

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As before, you can disambiguate using

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the at suffix for the action and ahjo

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for the object. Here, the aou suffix

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works best if we're talking about

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physical objects. When you give it an

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adjective ending, you get an adjective

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that describes something that is one way

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or another characterized by the action.

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So, for example, constua could mean

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constructive among other things. Perhaps

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when you take a root in the noun root

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class and give it an adjective ending,

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it gives you an adjective that describes

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something that is in some way related to

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the noun.

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>> In Esbranto, if you know how to say

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moon, you don't have to learn Luna. You

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form it yourself. Luno Luna just as city

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urban orb

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year annual yo yara.

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>> This is the weird one. When you add a

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verb ending, the Academy of Espirano

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gives three possibilities for what the

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result means. Acting like the noun,

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acting using the noun, or doing

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something that otherwise heavily

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involves the noun. There's no strict

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rules for what happens when you turn a

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word into an adverb. It's pretty much

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all entirely vibe based.

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In an espiranto word, the morphe become

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more important the closer you get to the

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end of the word, while the morphemss

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closer to the beginning are less

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important and serve mainly for

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disambiguation. For example, in the word

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of aporipo, the morphe o is the most

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important since it tells you that this

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is a noun. The morphe before it

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clarifies which noun, in this case, a

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ship. The morphe before that clarifies

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the kind of ship, a steam ship. If we

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swap the positions of vapor and ship, we

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no longer have a steam ship, but rather

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a ship's steam since vapor now has the

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more important position.

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You may at your option keep parts of

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speech hanging around if you feel like

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it will help with clarity or ease of

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pronunciation as it's done in compounds

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like multa expensive or partoren to

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participate. However, it is most common

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to omit these. And when this happens,

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the way the less important morphe is

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interpreted depends on the root class of

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the main morphe. When the root class of

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the main morphe is a noun or adjective,

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the previous one is typically

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interpreted to be a noun regardless of

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its root class. That's why it's normal

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to say blue okulo to mean blue eye. But

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blueo, all one word, sounds kind of

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weird. Allowances are made if you want

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to put together brief adjectives.

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However, bluea is a perfectly normal way

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to say blueeyed. When the root class of

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the main morphe is a verb, there are

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more possibilities. The previous

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morphing could be a noun, adjective

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indicating a result, or even an adverb,

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particularly if it's a preposition or

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prefix.

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Espiranto has a number of prefixes and

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suffixes which can be used to generate

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new vocabulary. Despite their name,

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these morphes can be used independently

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as separate words, and most are part of

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a root class. What makes them distinct

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is that they may slightly diverge from

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the usual rules of compounding. But for

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this video, we don't need to worry about

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that. I've already talked about these

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three suffixes. So for these, I'm just

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going to add that a can be added to

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roots in the noun root class to get a

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word for something that is usually

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produced from that thing. This is

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largely decided by common usage. For

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example, when aou is added to words for

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animals, the resulting word typically

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refers to their meat. The ad suffix can

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be used in words that are marked as

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verbs to indicate that the action goes

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on for a while. There are many other

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affixes, of course, but I won't talk

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about all of them, just the most common

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and useful ones. We'll start with the

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two verbal suffixes, igy and eg, just to

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get them out the way because while

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they're among the most useful, they're

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the most complex in my opinion. The

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basic definition unifying all the ways

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in which egi is used is to cause and for

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egi it's to become. That's all you

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really need to know. But let's get into

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the details.

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When egi is appended to noun or

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adjective roots the resulting word means

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to cause to be the thing. For example,

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bona becomes bonigi to cause to be good.

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Simpla simple becomes simple to

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simplify. Urb city becomes urbigi to

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urbanize. Sometimes these words may be

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used figuratively. For example, Claude

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Peron translates renabigi as to restore

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a boy's soul rather than to literally

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turn someone into a boy. When igy is

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used for verbs, the result means to

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cause the verb to occur. When the

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original verb is intransitive, the

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object of the new verb is just the

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subject of the original verb. For

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example, midas means I sit. VCAS

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means you make me sit or you cause me to

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sit something like that. When the

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original verb is transitive, the object

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of the new verb can be either the

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subject or the object of the original

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verb at your option. For example,

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and

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are both valid ways of saying that

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reminds me of my childhood with the

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prepositions clarifying which is which.

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When there's no prepositions, context is

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used to determine what's going on. Words

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created with a egi suffix tend to be

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more than the sum of their parts. For

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example, mjigi is usually interpreted as

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to feed, not simply as to cause eating.

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If you want to make sure you're

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understood literally, consider keeping

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egi separate. This is also useful for

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avoiding the ambiguity I mentioned

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earlier. The eg suffix is very similar

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to the egi suffix. For noun and

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adjective roots, it's basically the same

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thing as egi except with the meaning of

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to become rather than to cause. For verb

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roots that are transitive, egi has the

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effect of rendering them intransitive,

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which is similar to a passive. So for

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example, gray means to create something.

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Grai means to be created. There are also

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some words which may take on different

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meanings with eg, but I can only think

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of these two. Finally, as always, we can

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change the part of speech ending in

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words created from egi, egi, or any

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other suffix to create additional words.

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Hopefully, I didn't lose you. The rest

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of the prefixes and suffixes are much

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more straightforward.

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The ano suffix refers to a member of

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something. Urb becomes urbano, a

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resident of a city. The aro suffix

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refers to a collection of something.

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Arbo, tree becomes arbaro, forest. Shipo

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becomes shiparo a fleet. Sometimes this

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collection is inclusive of all instances

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of the thing. This too is decided by

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common usage. Homo human becomes laaro

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humanity and the vorto word becomes

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vortar dictionary. The aosuffix is used

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to refer to a place that's designed or

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known for a particular purpose or

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characteristic. MO can mean anything

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from a cafeteria to a restaurant and leo

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means school.

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The erosuffix is used to talk about a

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small or smallest part of something.

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From nejo snow, you get negero,

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snowflake. From pano, bread, you get

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panero, breadcrumb. And from vorto, you

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get vorto, morpham. The estro suffix is

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used to refer to a leader of something.

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Sheestro is the captain of a ship.

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Orbestro is the mayor of a city. Lestro

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is a school's principal.

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The eido suffix is used for offspring.

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From hundo and kato, dog and cat, we get

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hundo and katido, puppy and kitten. From

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Latina, the Latin language, we get

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latinido, a romance language. The ilo

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suffix is used to talk about tools or

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other means to do something. Rapido

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could mean accelerator and mangilo can

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be any eating utensil just aso can mean

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any writing utensil. Some words like

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schlloilo for key and flugilo for wing

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are lexicalized. The ever controversial

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eno suffix can be used to create female

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counterparts to male words. It is

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sometimes used together with the

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unofficial suffix each. The use of in is

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only mandatory for certain words that

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are defined as male in the fundamentally

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kinship terms. And for all suffixes for

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humans mentioned in this video, it is

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optional. The eastto suffix is used to

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talk about someone who spends a lot of

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time with something especially if they

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do so professionally. It can also refer

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to adherence of certain ideas. Guratisto

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means shut up. Guratisto means doctor

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and linguistto means well linguist. The

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ismo suffix is used for doctrines as

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with English ism. The uyo suffix is used

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for containers. Malvaruo means fridge.

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Monuo means wallet. It's also used to

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form country names from roots that refer

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to ethnic groups. From Anglo, an English

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person, we get anglio, England.

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The olo suffix is a general suffix for

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people. Bonulo is a good person, for

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example. In biology, it can also be used

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for organisms in general. The espiranto

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word for mammal is mamulo. As a

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standalone word, ulo has the same vibe

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as the English word guy or dude. The

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emma suffix indicates habits and

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tendencies. Mangi becomes manga which

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describes someone who eats a lot. Mgemo

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is the word for the tendency itself.

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From the word can mean creative. The

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enda suffix forms adjectives that

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describe things that need to have

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something done to them. If you need to

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learn something for a test, it's or

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your dirty laundry is lavenda. So get on

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it. The edla suffix forms adjectives

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that describe things that can have a

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particular action done to them. Anji

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becomes mangla edible. It is only used

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for possibility. So from memory to

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remember. The word memora means

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memorable in the sense of literally

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being possible to remember. For the

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other sense of the word, you want the

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inda suffix which forms adjectives that

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describe things that are worthy of

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receiving a certain action. This lets

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you form memorinda memorable in the

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usual sense or manginda which might be

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used to describe really good food.

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There's also the augmentative suffix

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egg. the dimminative suffix at, and I

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saved the best for last. The a suffix,

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which specifies that you think a thing

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is crap. The most well-known prefix is

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probably mal, which can be used to

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generate opposites. Bona, good becomes

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mala, bad. Simpla, simple, becomes mala,

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complicated. V, warm, becomes malvarma,

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cool. There's also a couple more

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prefixes, which I'll just flash on

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screen.

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From the word building system, we get

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some nifty patterns. One of them emerges

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from the ability to glue a preposition

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in a root to create adjectives. The

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phrase enla,

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one word, means domestic in the sense of

14:14

a country. Seno means without joy, but

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sena means joyless. You can then add igi

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and egi as you please to these

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adjectives. Senigi means to take

14:26

someone's joy away.

14:28

Means deforestation.

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Eniji means to get into bed. Enuigi

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means to put in a container. Senorajigi

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means to discourage. El doigi means to

14:39

get something out of a house.

14:42

Means to land on the ground. And sigisto

14:45

means influencer.

14:47

Do note that there is some room for

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ambiguity with these in situations where

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you have a lot of affixes glued together

14:53

or when a preposition is used for

14:54

multiple things. There's also ble xiggy

14:58

which means to cause something to be

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more of something. Bleoni means to

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improve something. Bleigi means to make

15:05

someone happier. Bleigi on its own means

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to increase. These words differ from

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just bonigi and felichi in that they

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don't necessarily indicate that the

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thing is being made good or happy. just

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better or happier than before. There's

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also some exano which means member of

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the same thing. Sam urbanoi are people

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who live in the same city. Sam reiganoi

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are people who believe in the same

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religion. Some kuranoi are classmates

15:30

and some idanoi are like-minded people.

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Hopefully this video gave you a good

15:35

look at how the espirano word building

15:37

system [music] works and how powerful it

15:38

can be. That's all.

15:44

>> [music]

15:49

[music]

15:50

>> Heat. Heat.

15:57

>> [music]

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