Ссылки:ND 667 *gUrʕV 'mount, hill' (Kartv. + SH?), 929 *kur(Vh)V 'hill, mountain' (IE + Ur + Drav + SH); 1139 *Ḳo/urV 'rock, isolated mountain' (Alt. + same Ur. and Drav.; the reconstruction *ḳ- is actually done only on the basis of Arab. qārat- 'colline isolée' - which in fact has an alternative etymology!!). Thus we have three roots instead of a simple one... [Cf. PAA *gɔ:r 'mountain, forest'].
