Comments:EAS 96, PKE 32, Цинциус 1984, 72. A Western isogloss. Despite Poppe 1966, 198, 1972, 99, Doerfer MT 98, TM cannot be borrowed from Mong. A Western isogloss: the Korean parallel mentioned in PKE 32 (č:i- 'be inferior to, weakened') is unreliable - probably a misreading of či- id.