Lewis & Short

Căsĭus mons, = Κάσιον ὄρος.

  1. I. A very high mountain in Syria, on the Orontes, now Jebel-Okrab, Plin. 5, 22, 18, § 80; Amm. 14, 8, 10; 22, 14, 4.
  2. II. A mountain between Lower Egypt and Arabia, with a temple of Jupiter, near which Pompey was murdered, now El Kas or El Katieh, Mel. 1, 10; 3, 8, 3; Plin. 5, 12, 14, § 68.
    Hence, Căsĭus, a, um, adj.: rupes, Luc. 10, 434: harenae, id. 8, 539: Juppiter, Enn. Eutr. 54 Vahl.; Plin. 5, 12, 14, § 68.