Proto-North Caucasian: *büg_a (~ -ɨ,-ǝ, -o)
Meaning: side (of the body), waist
Notes: Quite regular phonetically (although the vocalic reconstruction is somewhat dubious: the *-ü- vowel is not surely reconstructed for PEC and PNC). The EC forms go back to an intermediate protoform *büŁ_a. PWC *bǝɣA can not (despite Shagirov 1977, Abdokov 1983, 78) be compared with Av. muʁ, Chech. buq̇ 'back' (note that these forms have nothing to do with each other, too). See also *=ĕƛ̣_Ĕ.
