Lewis & Short

Gādes, ĭum, f. [the Phœnician gadis means hedge],

  1. I. a famous colony of the Phœnicians established on an island of the same name in Hispania Baetica, the modern Cadiz, Mel. 2, 7, 1; 3, 6, 1; Plin. 4, 22, 36, § 120; Cic. Fam. 10, 32, 1; id. de Sen. 19, 69; Liv. 21, 21; Hor. C. 2, 2, 11; 2, 6, 1. Called also Gadir or Gaddir (Gr. τὰ Γάδειρα), Sall. Fragm. ap. Prisc. p. 648 and 698 P. (Hist. Fragm, 2, 26 Dietsch), Plin. l. l.
  2. II. Deriv. Gādītānus, a, um, adj., of or belonging to Gades: Oceanus, Plin. 2, 103, 106, § 227; cf. fretum, id. 3 praef. § 3: portus, Mel. 3, 1, 4: populus, Cic. Balb. 18, 42: foedus, id. ib. 14, 32.
    Subst.: Gādītāni, ōrum, m., the inhabitants of Gades, Cic. Balb. 17, 39; 18, 43; Caes. B. C. 2, 18; 21.
    In fem.: Gādītānae, ārum, women of Gades, Plin. Ep. 1, 15, 3.
    In sing.: Gādītānus, i, i. e. L. Cornelius Balbus, of Gades, Cic. Att. 7, 7, 6.