The root reveals different Ablaut grades: *ʔiχar- (Tab. u=χ-uz < *ʔi-χ(r)-us: with vowel assimilation; Lezg. χra-z, praet. χra-na, Kryz. χɨr-iǯ with Anlaut *ʔi-reduction) / *ʔoχVr-, sometimes with reduplication *χoχVr- (Lezg. imper. χuruχ, Rut. =ɨ-χɨrχ-as, Kryz. dur. χɨχr-i) / *ʔäχVr- (Tsakh. q-eχa-s, Kryz. imper. s-äχɨr). In some languages (Lezg., lit. Tab., Kryz. and Bud.) the root also means 'to knit' - which is a result of contamination with PL *ʔiχ:ʷar q.v. The verb has some nominal derivates:
a) PL *ruχ(a) > Lezg. ruχ 'carpet, rug', Kryz. ruχ id.;
b) PL *b-ärχa-l(a) ( < *b-äχra-l(a)) 'carpet, rug' (Tab. barχal, Ag. barχIal, Fit. barχil; Ag. > Darg. Chir. parχil id.). A variation of the same stem (with initial reduction) may be Rut. Shin. χɨli 'carpet, rug'.
c) PL *χa-na ( < *(ʔi)χar-na) > Tsakh. χana 'loom', Kryz. χänä 'warp'.
See Хайдаков 1973, 143.