The
Mordvinic languages, alternatively
Mordvin languages, or
Mordvinian languages (,
Mordovskiye yazyki, the official Russian term for the language pair), are a subgroup of the
Uralic languages, comprising the closely related
Erzya language and
Moksha language. Previously considered a single "Mordvin language", it is now treated as a small language family. Due to differences in
phonology,
lexicon, and
grammar, Erzya and Moksha are not mutually intelligible, to the extent that the Russian language is often used for intergroup communications.