Lewis & Short

cȳănĕus, a, um, adj., = κυάνεος.

  1. I. Dark-blue, sea-blue: cyaneo colore avis, Plin. 10, 32, 47, § 89: stagna, Prud. Psych. 858.
  2. II. Cȳănĕae, ārum, f., = Κυάνεαι, the two small rocky islands at the entrance of the Pontus Euxinus, called also Symplegades, q. v., Ov. Tr. 1, 10, 34; Mel. 2, 7, 3: errantes, Val. Fl. 4, 561.
    Hence,
    1. B. Cȳă-nĕus, a, um, adj., of or belonging to the Cyaneæ: cautes, Luc. 2, 716: montes, Val. Fl. 2, 381: rupes, id. 4, 637: ruinae, Mart. 7, 19, 3: insulae, Mel. 2, 7, 3; Plin. 4, 13, 27, § 92 al.
      1. 2. Transf., like the Cyaneæ: nates, Mart. 11, 99, 6.