Proto-Altaic: *ki̯ùp`u
Meaning: silk, mulberry
Russian meaning: шелк, тут
Comments: SKE 113. Cf. also Mong. köbüŋ 'cotton' ( > Oyr. köböŋ, Tuva xöveŋ, Khak. köböŋ etc., see ЭСТЯ 5, 108-109 (with some confusion of this root and Turk. *köpe 'cloth' < *k`ŏ̀p`e q. v. and Turk. *köp- 'swell, foam' < *k`óp`i q. v.); > Man. kubun id., see Doerfer MT 102). In fact, it would be tempting to consider Mong. *kib as a Turkic loanword (despite the fact that the Turk. *Kɨp is not widely spread and late attested, it cannot be < Mong.), because Mong. -i- is not quite regular here, while köbüŋ is a perfect phonetic match.
