Lewis & Short

Caucăsus, i, m., = Καύκασος.

  1. I. The rough Caucasian chain of mountains, in.habited by wild tribes, in Asia, between the Black and Caspian Seas, Mel. 1, 15, 2; Plin. 6, 13, 15, § 37; Cic. Tusc. 2, 10, 23: inhospitalis, Hor. C. 1, 22, 7; id. Epod. 1, 12; cf. Verg. A. 4, 366; acc. Gr. Caucason, Ov. M. 8, 798; Stat. Th. 4, 394.
    Hence,
    1. B. Caucă-sĭus, a, um, adj., pertaining to Caucasus, Caucasian: montes, Mel. 1, 19, 13; 2, 4, 8: vertex, Verg. G. 2, 440: rupes, Prop. 2, 1, 69: aves, id. 2 (3), 25, 14: volucres, Verg. E. 6, 42: arbores, Prop. 1, 14, 6: Portae, a narrow pass between the Caucasus and the mare Hyrcanum, Plin. 6, 11, 12, § 30.
  2. II. A name of a horse, Sil. 16, 357.