Comments:EAS 64, KW 443, Лексика 39. A PA derivative *č`iju-k`V is reflected in PT *čɨjɨk = Mong. čiɣig = PTM *čik- = Kor. *čhuk-. Also here probably Kor. čhú-m 'phlegm'. In Japanese (perhaps also in Korean) there is some confusion of this root with *č`aju 'resin, tar' q. v.