Comments:See a detailed account in Miller-Street 1975, 116ff (with literature), АПиПЯЯ 283, Дыбо 12. Unlike Miller-Street, we leave aside the name of the "ferret" (linking instead Turk. *kɨŕ-ɨl 'red' and TM *xuri-), as well as PJ *kùruá 'black' (having a different accent). It is interesting to note metal names derived from this root: Turk. *kɨŕɨl 'gold' (see Лексика 403-404) = Mong. kürel 'bronze' = Kor. kùrí 'copper'. PT *Kɨ̄r 'grey' could be perhaps compared separately with PM *kiraɣa 'dusk before dawn', cf. Владимирцов 338.