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Home > Ido language


 

Ido is a "reformed" version of the planned language Esperanto. It was developed in the early 1900s, and still has a small following today, primarily in Europe.

Ido inherits many of the same grammatical features of Esperanto, and in many cases the vocabulary is similar. Ido shares with Esperanto the goals of grammatical simplicity and consistency, ease of learning, and the use of loanwords from various European languages. The two languages, to a great extent, are mutually intelligible. However, certain changes were introduced to address some of the concerns that had arisen about Esperanto. These include:

The name of the language can have its origin in the Ido pronunciation of "I.D." (from "International Delegation", see below) or the word ido, "descendant (of Esperanto)".

1 Phonology

Ido has the same typical five-vowel system (a, e, i, o, u have their IPA values) as Esperanto, and most of the same consonants, omitting two consonant phonemes used by Esperanto, /x/ and /dZ/. Ido also avoids some consonant clusters that occur in Esperanto (e.g. syllable-initial /kv/, /gv/) and uses some clusters that do not occur in Esperanto (/kw/, /gw/).

The accent rule in Ido is regular, but slightly more complex than that of Esperanto: all polysyllables are stressed on the penult except for verb infinitives, which are stressed on the ultima.


2 Grammar

Each word in the Ido vocabulary is built from a root word. A root word consists of a root and a grammatical ending. Other words can be formed from that word by removing the grammatical ending and adding a new one, or by inserting certain affixes between the root and the grammatical ending. As with Esperanto, Ido is grammatically invariable; there are no exceptions in Ido, unlike in natural languages.

Some of the grammatical endings are defined as follows:

These are the same as in Esperanto except for -i, -ir/-ar/-or and -ez. Esperanto marks noun plurals by an agglutinative ending -j (so plural nouns end in -oj), uses -i for verb infinitives (Esperanto infinitives are tenseless), and uses -u for the imperative.

The pronouns of Ido were revised to make them more acoustically distinct than those of Esperanto (all of whose pronouns end in i; the first person plural pronouns mi and ni may be difficult to distinguish in a noisy environment). Ido distinguishes intimate (tu) and formal (vu) second-person singular pronouns from a plural second-person pronoun not marked for intimacy (vi), where Esperanto has vi for both plural and singular and no intimacy distinction in the second person. Ido also has an epicene third-person animate pronoun lu in addition to its masculine (il), feminine (el), and inanimate (ol) third-person pronouns.




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