Borean (approx.) : KVRKV
Meaning : to bend
Afroasiatic : Eg. `rḳ 'krumm ziehen'; Ar. ɣrḳ 'tendre fortement la corde de l'arc'
Sino-Caucasian : ST *kĭw bend
Notes : Evidence for a root without *G-: Krt. *ark- 'крутить' (8); Alt. *erk`a 'to wrap, tie; lasso' (1153). IE form maybe here; Sem. *`arq- 'sinew, bow-string'.