Lewis & Short

Antĭānus, Antĭas, Antĭātīnus, v. Antium.

Antĭum, ii, n., = Ἄντιον.

  1. I. An ancient town in Latium distinguished for the temple of Fortune (Hor. C. 1, 35, 1), not far from the sea-coast, now Porto d’Anzio, the birthplace of Nero, Plin. 3, 5, 9, § 27; Inscr. Orell. 1738; cf. Mann. Ital. 1, 618; Müll. Roms Campagn. 2, 271 sq.
    Hence,
  2. II. Derivv.
    1. A. Antĭānus, a, um, adj., Antian: Hercules Antianus, honored at Antium, Cic. Fragm. ap. Non. p. 284, 1.
    2. B. Antĭas, ātis, adj., of or belonging to Antium, Antian, Liv. 8, 14; so id. 6, 9; 8, 12 al.
      So, Valerius Antias, a historian before Livy, Gell. 1, 7, 10; cf. Bähr, Lit. Gesch. 260; Teuffel, Rom. Lit. § 142, 3.
      Hence, Antĭātes, um, m., the inhabitants of Antium: naves Antiatum, Liv. 8, 14 fin.
    3. C. Antĭātīnus, a, um, adj., Antian: fortunae, Suet. Calig. 57.
    4. D. Antĭensis, e, adj., the same: templum, Val. Max. 1, 8, n. 2.