Notes: A reliable common NC etymology, first proposed by Balkarov (1964, 100); see also Абдоков 1983, 158-159. An alternative comparison (Charaya 1912, 26) with Georg. c̣wa, Megr. č̣wala 'burn' can not be accepted.
Labialisation in PWC is secondary: either due to a lost class prefix, or to the labialising influence of the lost -m- (cf. above about the secondary variant *-ĭmʒ́wĔr in EC).
