Lewis & Short

Dŭellĭus (in MSS. and inscrr. also written Dŭīlius and Duillius), a, um [duellum = bellum; cf. Cic. Or. 45, 153; Quint. 1, 4, 15], a Roman gens; esp.,

    1. 1. C., the famous conqueror of the Carthaginians, in honor of whom the Columna rostrata was erected, 493 A. U. C., Cic. Rep. 1, 1; id. de Sen. 13, 44; id. N. D. 2, 66; id. Planc. 25; Plin. 16, 39, 74, § 192; Sil. 6, 665; cf. Inscr. Orell. 549.
    2. 2. M., a tribune of the people, A. U. C. 283, Liv. 2, 55 al.