Lewis & Short

Cynthus, i, m., = Κύνθος,

  1. I. a mountain of Delos, celebrated as the birthplace of Apollo and Diana, now Montecintio, Plin. 4, 12, 22, § 66; Ov. M. 2, 221; 6, 204 al.
    Hence,
  2. II. Cynthĭus, a, um, adj., of or pertaining to Cynthus, Cynthian: mons, Plin. 4, 12, 22, § 66 Sillig.
    As subst.,
      1. 1. Cynthĭus, ii, m., the Cynthian god, i. e. Apollo, Prop. 2 (3), 34, 80; Hor. C. 1, 21, 2; Ov. F. 3, 346 al.
      2. 2. Cynthĭa, ae, f., the Cynthian goddess, i. e. Diana, Hor. C. 3, 28, 12; Ov. M. 2, 465; 7, 755; id. F. 2, 91 al.
      3. 3. Also for Luna, the moon, as a goddess, Sen. Herc. Oet. 641; Luc. 1, 218.
      4. 4. The name of a maiden, Prop. 2 (3), 29, 24 sq.; Ov. R. Am. 764 al.