Consonants

The following table lists the consonant phonemes of Erzya together with their Cyrillic equivalents.^[4]

Note on romanized transcription: in Uralic studies, the members of the palatalized series are usually spelled as ⟨ń⟩, ⟨ť⟩, ⟨ď⟩, ⟨ć⟩, ⟨ś⟩, ⟨ź⟩, ⟨ŕ⟩, ⟨ľ⟩, while the postalveolar sounds are spelled ⟨č⟩, ⟨š⟩, ⟨ž⟩ (see Uralic Phonetic Alphabet).

/f/ and /x/ are loan phonemes from Russian.^[4] There is a phonemic contrast between /n/ and /ŋ/, despite that they share the standard spelling ⟨н⟩. Minimal pairs include:

• /janɡa/ "along the path", in which the alveolar /n/ of the stem is retained before the prolative case ending /ɡa/, vs. /jaŋɡa/, the connegative form of the verb /jaŋɡams/ "to break"
• /jonks/ "good", subject or object complement in /ks/ translative, vs. /joŋks/ "direction; area". See Rueter 2010: 58.

Vowels

Erzya has a simple five-vowel system.^[5]

The front vowels /i/ and /e/ have centralized variants [ï] and [ë] immediately following a plain alveolar consonant, e.g. siń [sïnʲ] "they", seń [sënʲ] "blue".

Vowel harmony

As in many other Uralic languages, Erzya has vowel harmony. Most roots contain either front vowels (/i/, /e/) or back vowels (/u/, /o/). In addition, all suffixes with mid vowels have two forms: the form to be used is determined by the final syllable of the stem. The low vowel (/a/), found in the comparative case -шка (ška) "the size of" and the prolative -ка/-га/-ва (ka/ga/va) "spatial multipoint used with verbs of motion as well as position" is a back vowel and not subject to vowel harmony.

The rules of vowel harmony are as follows:

1. If the final syllable of the word stem contains a front vowel, the front form of the suffix is used: веле (veĺe) "village", велесэ (veĺese) "in a village"
2. If the final syllable of the word stem contains a back vowel, and it is followed by plain (non-palatalized) consonants, the back form of the suffix is used: кудо (kudo) "house", кудосо (kudoso) "in a house"

However, if the back vowel is followed by a palatalized consonant or palatal glide, vowel harmony is violated and the "front" form of the suffix is used: кальсэ (kaĺse) "with willow", ойсэ (ojse) "with butter". Likewise, if a front-vowel stem is followed by a low back vowel suffix, subsequent syllables will contain back harmony: велеванзо (veĺevanzo) "throughout its villages"

Thus the seeming violations of vowel harmony attested in stems, e.g. узере (uźere) "axe", суре (suŕe) "thread (string)", are actually due to the palatalized consonants /zʲ/ and /rʲ/.

One exception to front-vowel harmony is observed in palatalized non-final /lʲ/, e.g. асфальтсо (asfaĺtso) "with asphalt".

Nouns

Nouns are inflected for case, number, definiteness and possessor. Erzya distinguishes twelve cases (here illustrated with the noun мода moda "ground, earth"). Number is systematically distinguished only with definite nouns; for indefinite nouns and nouns with a possessive suffix, only the nominative case has a distinct plural.^[5][4]

Plural possessors follow the pattern of second person singular possessors.

Verbs

Erzya verbs are inflected for tense and mood, and are further conjugated for person of subject and object.^[4][5] Traditionally, three stem types are distinguished: a-stems, o-stems and e-stems. A-stems always retain the stem vowel a in the non-third-person present-tense forms, and in the third-person first past-tense forms (e.g. pala-ś "kissed"). With many o-stems and e-stems, the stem vowel is dropped in these forms (e.g. o-stem van-ś "watched", e-stem ńiĺ-ś "swallowed"), but there also o- and e-stem verbs which retain the vowel (udo-ś "slept", pid́e-ś "cooked"). Rueter (2010) therefore divides verb stems into vowel-retaining stems and vowel-dropping stems.^[6]

In indicative mood, three tenses are distinguished: present/future, first past, second (=habitual) past.

The third-person singular form in the present tense is also used as present participle. The second past tense is formed by adding the past-tense copula -ĺ to the present participle.

The other mood categories are:

• conditional (-ińd́eŕa + present suffixes)
• conjunctive (-v(V)ĺ + past suffixes)
• conditional-conjunctive (-ińd́eŕa-v(V)ĺ + past suffixes)
• desiderative (-ikseĺ + past suffixes)
• optative (zo + present suffixes)
• imperative (-k/-do)

Cyrillic alphabet

The modern Erzya alphabet is the same as for Russian:^[4]

А /a/	Б /b/	В /v/	Г /ɡ/	Д /d/	Е /je/	Ё /jo/	Ж /ʒ/	З /z/	И /i/	Й /j/
К /k/	Л /l/	М /m/	Н /n/	О /o/	П /p/	Р /r/	С /s/	Т /t/	У /u/	Ф /f/
Х /x/	Ц /t͡s/	Ч /t͡ʃ/	Ш /ʃ/	Щ /ʃt͡ʃ/	Ъ /-/	Ы /ɨ/	Ь /◌ʲ/	Э /e/	Ю /ju/	Я /ja/

The letters ф, х, щ and ъ are only used in loanwords from Russian. The pre-1929 version of the Erzya alphabet included the additional letter Cyrillic ligature En Ge (Ҥ ҥ) in some publications, (cf. Evsevyev 1928).

In combination with the alveolar consonants т, д, ц, с, з, н, л, and р, vowel letters are employed to distinguish between plain and palatalized articulations in a similar way as in Russian: а, э, ы, о, у follow plain alveolars, while я, е, и, ё, ю follow palatalized alveolars, e.g. та /ta/, тэ /te/, ты /ti/, то /to/, ту /tu/ vs. тя /tʲa/, те /tʲe/, ти /tʲi/, тё /tʲo/, тю /tʲu/. If no vowel follows, palatalization is indicated by ь, e.g. ть /tʲ/. Following non-alveolar consonants, only а, е, и, о, у occur, e.g. па /pa/, пе /pe/, пи /pi/, по /po/, пу /pu/.

Latin alphabet

This section may lend undue weight to romanization proposals that are neither official nor widely used/recognized. Please help to create a more balanced presentation. Discuss and resolve this issue before removing this message. (February 2023)

A Latin alphabet was officially approved by the government of Nizhne-Volzhskiy Kray in 1932, but it was never used:^[7]

a в c ç d ә e f g y i j k l m n o p r s ş t u v x z ƶ ь

One of the modern Latin alphabet proposals:^{[8][9][10][11][non-primary source needed]}

a b c č ć d d́/ď e f g h i j k l ĺ/ľ m n ń o p r ŕ s š ś t t́/ť u v z ž ź