Lewis & Short

Norba, ae, f.,

  1. I. a city of Latium, now called Norma, Liv. 2, 34.
  2. II. Hence,
    1. A. Norbānus, a, um, adj., of or belonging to Norba, Norban: ager, Liv. 8, 19.
      In plur.: Norbāni, ōrum, m., the Norbans, Liv. 8, 1; 27, 10; Plin. 3, 5, 9, § 64.
    2. B. Norbānus, i, m., a Roman surname in the gens Vibia: C. Norbanus, Cic. de Or. 2, 21, 89.