Cuman language

Cuman or Kuman (also called Kipchak, Qypchaq or Polovtsian, self referred to as Tatar (tatar til) in Codex Cumanicus) was a West Kipchak Turkic language spoken by the Cumans (Polovtsy, Folban, Vallany, Kun) and Kipchaks; the language was similar to today's various languages of the West Kipchak branch. Cuman is documented in medieval works, including the Codex Cumanicus, and in early modern manuscripts, like the notebook of Benedictine monk Johannes ex Grafing. It was a literary language in Central and Eastern Europe that left a rich literary inheritance. The language became the main language (lingua franca) of the Golden Horde.