Jassic dialect
Jassic is an extinct dialect of the Ossetian language once spoken in Hungary, named after the Jasz people, a nomadic tribe that settled in Hungary in the 13th century. Wikipedia
Ethnicity: Jassic people
Extinct: 15th century?
Language family: Indo-European > Indo-Iranian > Iranian > Eastern > Scythian > Ossetian > Digor? > Jassic