Comments:Мудрак Дисс. 102. Cf. also Kalm. gejǖn, WMong. gejeɣün 'grievous, gloomy' (perhaps < *gaju-gi- with secondary fronting). Note the peculiar *-d- in PT, reflected as -j- (not -r-) in Chuv.: perhaps we should rather reconstruct *Kaj(i)-dgu for early PT, with subsequent development either > *Kajgu or > *Kadgu.
