Comments: Cf. also Cham. Gig. =aḳʷVn- id. (NB: the printed version of the MSU recordings has -ḳ- in U.-Gakv. - which is a misspelling; the correct form is found in Bokarev).
The verb is attested only in Cham.; other languages reflect only the derivate *b-iḳ:ʷin / *r-iḳ:ʷin (cf. also Cham. Gig. beḳun) "knitting needle". The dialectal Av. form ṭuḳén possibly reflects a variant of the same derivate with a *d- prefix (Proto-Avar *d-eḳ:ʷen > *ṭeḳ:ʷen: cf. also a characteristic Archi loan from Old Avar ṭeƛ̣on 'needle', where -ƛ̣:- is rendering Av. -ḳ:-).