Lewis & Short

Cyrnŏs (Cyrnus, Sen. Epigr. 1, 2), i, f., = Κύρνος,

  1. I. the island Corsica, Plin. 3, 6, 12, § 80.
    Hence,
  2. II. Cyrnēus, a, um, adj., Cyrneian or Corsican: taxi, Verg. E. 9, 30: tellus, Sen. l. l.