Comments:АПиПЯЯ 102, 280. Velarization in Turkic is not quite clear and probably secondary (perhaps a fusion with the attributive *-k`i). The root is widely used only in the Kor.-Jpn. area, and its original function (to judge from the OJ opposition of si and na) was probably limited to the oblique stem of the suppletive 2d p. paradigm.
