Comments:ССЕ 306. Cf. also the derivative *χus-baŋ "вместе" > Ket qujvaŋ6, Bak., Sur. qujbaŋ6, Yug xujbaŋ5,6 (let us note *-sb- > -jb-) = Kott. hušpaŋ. PY *χusa is a compound the first component of which is also present in other forms: Ket qɔʔk, Yug xɔʔk 'one' (anim.); Kott. hūpiga 'alone'. As for *-sa, the same root is also present in Kott. al-še-n 'one time', as well as in PY *de-s '(one) eye', *pa-s '(one) time' q.v. etc. Werner 2, 132 <*qus / *qut>, 2, 122 <*qoʔk>.