Lewis & Short

Daunus, i, m., Δαῦνος,

  1. I. a fabulous king over a part of Apulia (whence it obtained the appellation Daunia), father (or ancestor) of Turnus, and father-in-law of Diomedes, Verg. A. 10, 616; 688; 12, 22 al.; Hor. Od. 3, 30, 11; 4, 14, 26; Ov. M. 14, 458; 510; id. F. 4, 76; Plin. 3, 11, 16, § 103; Paul. ex Fest. p. 69, 1 Müll.
  2. II. Hence,
    1. A. Dau-nĭus, a, um, adj., Daunian: heros, i. e. Turnus, Verg. A. 12, 723: gens, i. e. the Rutulians governed by Turnus, id. ib. 8, 146: dea, i. e. Juturna, sister of Turnus, id. ib. 12, 785: caedes, i. e. of the Romans (pars pro toto), Hor. Od. 2, 1, 34; cf. Camena, i. e. Roman, id. ib. 4, 6, 27: bulbus (an excellent kind growing in Apulia), Ov. R. Am. 797; cf. Plin. 19, 5, 30, § 95.
      1. 2. Subst.: Daunii, ōrum, m., the inhabitants of Apulia Daunia, Plin. 3, 11, 16, § 103; called also Dauni, Mel. 2, 4, 2.
    2. B. Daunĭăcus a, um, adj., Daunian, for Apulian: campi, Sil. 12, 429.
    3. C. Dau-nĭas, ădis, f., the province Daunia, poet. for Apulia: militaris, Hor. Od. 1, 22, 14.