Lewis & Short

delphīnus, i, and in the pure Greek form (poet.) delphīn, īnis (once also nom., delphis, = δελφίς, Avien. Arat. 699; cf. Serv. Verg. G. 1, 162; Prisc. p. 689 P.), m., = δελφίν,

  1. I. a dolphin.
          1. (α) Form delphinus, Plin. 9, 8, 7, § 20 sq.; Plin. Ep. 9, 33, 4 sq.; Gell. 7, 8; Cic. N. D. 27, 77; id. Div. 2, 70 fin.; Hor. A. P. 30; Juv. 6, 590; 10, 14.
          2. (β) Form delphin (cf. Phoc. Ars, p. 1705 P.); nom. delphin, Poëta ap. Pers. 1, 94; acc. delphīna, Ov. M. 6, 120; id. F. 2, 114; 6, 471; abl. delphine, Ov. M. 11, 237; plur. nom. delphines, Verg. A. 8, 673; Ov. M. 1, 302; id. Tr. 3, 10, 43 al.; gen. delphinum, Prop. 3, 17, 25 (4, 16, 25 M.); Verg. A. 3, 428 al.; acc. delphinas, id. E. 8, 56.
  2. II. Meton.
    1. A. The Dolphin, a constellation.
          1. (α) Nom. Delphinus, Col. 11, 2, 45; gen. delphini, Varr. R. R. 2, 5, 13; Col. 11, 2, 57.
          2. (β) Nom. delphin, Ov. F. 1, 457; 6, 720; acc. delphina, Ov. F. 2, 79; 6, 471.
    2. B. A water-organ shaped like a dolphin: aerei, Vitr. 10, 13.
    3. C. Certain showy articles of furniture, or perhaps mere ornaments on furniture, so called from their shape, Plin. 33, 11, 53, § 147.