Erzya has 10 vowel letters: А, Е, Ё, И, О, У, Ы, Э, Ю, Я. The core Erzya vowel system distinguishes five basic qualities, and the Cyrillic letters follow the same reading conventions as in Russian [2].
The Institute for Linguistic Studies (RAS) [2] has analysed the Erzya vowel system in the context of the Mordvinic and wider Uralic languages. Materials from the Research Institute of the Humanities of Mordovia [1] present these vowels as used in standard Erzya writing and teaching.
Erzya has a rich set of consonant letters written with the Russian Cyrillic consonants. A defining feature of Erzya phonology is the contrast between palatalised and non-palatalised consonants, marked in writing with the soft sign and the choice of following vowel letter [2].
The Institute for Linguistic Studies (RAS) [2] documents the Erzya consonant inventory in its Mordvinic research. The Research Institute of the Humanities of Mordovia [1] maintains the standard orthographic conventions that represent these consonant contrasts in written Erzya.
The special character Ӥ (I with diaeresis) is used in Erzya writing, and the soft sign Ь and hard sign Ъ function as in Russian Cyrillic [3].
The Institute for Linguistic Studies (RAS) [2] and the Research Institute of the Humanities of Mordovia [1] use the standard Erzya characters consistently in dictionaries and grammars, keeping the written system stable across Erzya publishing and education.
Erzya uses Arabic numerals (0–9). Native Erzya number words: нулть (0), вейке (1), кавто (2), колмо (3), ниле (4), вете (5), кото (6), сисем (7), кавксо (8), вейксэ (9).
Erzya numerals such as кавто (2) and колмо (3) are close to their Moksha counterparts (кафта, колма), reflecting the shared Mordvinic ancestry documented by the Institute for Linguistic Studies (RAS) [2] and the Research Institute of the Humanities of Mordovia [1] in their comparative Mordvinic studies.
The complete Erzya alphabet in alphabetical order, including the special character Ӥ alongside the standard Russian Cyrillic letters used to write Erzya.
The Research Institute of the Humanities of Mordovia [1], the Institute for Linguistic Studies (RAS) [2] and ELAR [3] collectively maintain the academic infrastructure that documents the Erzya alphabet and supports the Erzya language and its literary tradition.
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