Volga Bolgarian language

…regional written languages: Khwārezmian Turkic, Volga Bolgarian, Old Kipchak, Old Ottoman, and Early Chagatai. Khwārezmian, used in the 13th–14th centuries in the empire of the Golden Horde, is based on the old language, but mixed with Oghuz and Kipchak elements. Volga Bolgarian is preserved in inscriptions on tombstones (13th–14th centuries).…