Lewis & Short

Grăviscae, ārum (also Grăvisca, ae, Vell. 1, 15, 2), f.,

  1. I. a small town of Etruria, belonging to the territory of Tarquinii, near the modern Le Saline or S. Clementino, on the river Marta, Mel. 2, 4, 9; Plin. 3, 5, 8, § 51; Liv. 40, 29; 41, 16; Verg. A. 10, 184; Sil. 8, 475.
  2. II. Deriv. Grăviscā-nus, a, um, adj., of or belonging to Graviscœ, Graviscan: vina, Plin. 14, 6, 8, § 67.
    In plur. subst.: Grăviscāni, ōrum, m., the inhabitants of Graviscœ, Graviscans, Dig. 31, 1, 30; Inscr. Grut. 407, 1.