Lewis & Short

2. Naevĭus, a [naevus; hence, prop., one born with a mole or birth-mark], name of a Roman gens. The most celebrated member of it is Cn. Naevius, a Roman epic and dramatic poet, born A. U. C. 480. He made the first Punic war, in which he had served, the subject of a poem, in which he so boldly satirized the nobility, especially the Metelli, that he was forced into exile at Utica, where he died, A. U. C. 550, Cic. Brut. 15, 60; id. Tusc. 1, 1, 3; Gell. 1, 24, 2; 17, 21, 45.
Hence,

  1. A. Naevĭus, a, um, adj., of or belonging to a Nævius, Nœvian: porta Naevia, Liv. 2, 11; cf. Varr. L. L. 5, § 163 Müll.: Naevia silva dicta juxta Romam, quod Naevi cujusdam fuerit, Paul. ex Fest. p. 168 ib.: Naevia olea, Col. 12, 48.
  2. B. Naevĭānus, a, um, adj., Nævian; i. e.,
    1. 1. Of or belonging to the poel Nævius: Hector, Cic. Fam. 5, 12: scripta, id. Brut. 15: modi, id. Leg. 2, 15.
    2. 2. Of or belonging to (another) Nævius: pira, Col. 5, 10, 18; 12, 10, 4; Cels. 2, 24.