Definition of "Kistian"

The Kistian group comprises the Ingush or Lamur, Karabulak, Chechenze, Tush or Mosok... The various Kistian idioms are spoken altogether by about 140,000 individuals. Formerly the Circassians numbered about 500,000, but large numbers of them have in recent times migrated to European Turkey.

1877, Abel Hovelacque &c., The Science of Language, p. 136

The Tush or Mosok appears to be fundamentally a Kistian or Tchetchenz idiom affected by Georgian influences.

1879, Encyclopaedia Britannica, 9th ed., Vol. X, "Georgia", p. 434