Comments:It is hypothesized here that the Bsq word is composed of a fossilized class prefix *b= + the PSC root *=íxwV 'to sift': Cf. PNC *=if_V 'to sift' > Tsakh. wex:ʷa 'sieve'. Bouda (1948) compared Bsq bahe + Tsakhur weχ:a (sic.). For phonology cf. Bsq *bahi = PNC *(w)=HirfV-.