Comments: PTsKh *c̣ɨRu-c̣a ( ~ *c̣üRu-); PGB *c̣aʔa (cf. also Bezht. Khosh. c̣aʔ). In the PTsKh compound (which has an exact match in PGB: *c̣ulu-c̣aʔa > Bezht. c̣uluc̣a, Gunz. Nakh. c̣uluc̣aʔa 'bow') the first component goes back to PTs *c̣ulu B 'arrow' q.v.