Comments:EDT 676, TMN 3, 562, ЭСТЯ 6, 32-33, Stachowski 150. The deriving stem *Koj(u)- 'to become viscous, thick' is attested in Oyr. qoj-, KKalp. qojɨ-, Khak. xojɨ-, Tuva xoju- (see ibid.). The reconstruction *Koń- is proposed in VEWT 276, but is based only on the not quite reliable Tofalar nasalization; the Yakut and OT evidence does not support it.