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† 1. hydrus or -os, i, m., = ὕδρος, a water-serpent, serpent (cf.: chelydrus, chersydrus, anguis, serpens).
- I. Lit., Plin. 29, 4, 22, § 72; Verg. G. 4, 458; id. A. 7, 753; Ov. M. 13, 804: marini, Plin. 6, 23, 26, § 98. In the hair of the Furies, of Medusa, etc., Verg. A. 7, 447; Val. Fl. 2, 195; Ov. M. 4, 800; hence poet. transf.: nam si Vergilio puer et tolerabile desit Hospitium, caderent omnes a crinibus hydri, i. e. all his poetic fire would have come to naught (referring to his description of the Furies, A. 7, 415 and 447), Juv. 7, 70.
- II. Transf.
- A. The poison of a serpent, Sil. 1, 322.
- B. Hydros, i, the constellation of the Waterserpent, called also Anguis and Hydra, German. Arat. 429.
2. Hydrūs, untis, f., = Ὑδροῦς, a city of Calabria, under a mountain of the same name, now Otranto, Plin. 3, 11, 16, § 101; Cic. Fam. 16, 9, 2; id. Att. 15, 21, 3; 16, 5, 3; Mel. 2, 4, 7.
In masc., avius Hydrus, of the city and mountain, Luc. 5, 375.
The city is also called Hydruntum, i, n., Liv. 36, 21, 5; Plin. 3, 11, 16, § 100.