The Mordvin language is a term, mistakenly used for Erzya language and Moksha language (both are related, but different languages). Erzya (Эрзянь Кель (Erzjanj Kelj)) is spoken in the northern part of the republic of Mordovia in Russia. ... The Moksha language is spoken mostly in South of the Republic of Mordovia in Russia. ...
The third largest Uralic language in number of speakers, ranking after Hungarian and Finnish, it has two major dialects: Erzya, spoken in the eastern portion of Mordvinia and the surrounding territory; and Moksha, spoken in the west.
The three major dialects of Mari are the Meadow dialect, spoken in Mari El and north of the Volga River; the Mountain (Hill) dialect, spoken mostly south of the Volga, between the Volga and Sura rivers (Chuvashiya republic); and the Eastern dialect, spoken...
Finnish, Estonian, and Lapp are the best-known Finnic languages.