Lewis & Short

Oea, ae, f.,

  1. I. a town of Africa, now Tripolis, Mela. 1, 7, 5; Sil. 3, 257; App. Mag. 17.
    Hence,
  2. II. Oeensis, e, adj., of or belonging to Œa: civitas Oeensis, Plin. 5, 4, 4, § 27; cf. Sil. 3, 257.
    Plur. subst.: Oeenses, ĭum, m., the inhabitants of Œa, Plin. 5, 5, 5, § 38; Tac. H. 4, 50.