COMMENT: A very stable common NC root; reflected in most languages as both a verbal and adjectival stem. Cf. also the nominal derivate *r-iG_wV / *G_wVrV 'draught' (PD *deʁʷ > Ak. deʁ, Chir. deʁʷ, Ur. diw, PTs > Gunz. (Nakh.) qor). Note a frequent use of the reduplicated stem *G_wiGwVr- (in PA, PC, Lak.). See Абдоков 1983, 144-145.
