Grāii or Grāi, ōrum (gen. plur. Graium, Enn. ap. Prob. ad Verg. E. 6, 31; Lucr. 2, 600; 5, 405; 6, 754 et saep.), m., a less freq. and mostly poet. form for Graeci, the Grecians, Greeks: Musas quas Grai memorant, Enn. ap. Varr. L. L. 7, § 26 Mull. (Ann. v. 2 Vahl.): cujus ob os Grai ora obvertebant sua, Poet. (perh. Enn.) ap. Cic. Tusc. 3, 18, 39: Pergama circum Hac fugerent Grai, Verg. A. 1, 467: est locus, Hesperiam Grai cognomine dicunt, id. ib. 1, 530; cf. Lucr. 3, 100: Graiorum obscura reperta, id. 1, 137: fas mihi Graiorum sacrata resolvere jura, Verg. A. 2, 157: de tot Graiorum millibus, Ov. M. 13, 241.

—In prose: si ut Graeci dicunt, omnes aut Graios esse aut barbaros, etc., Cic. Rep. 1, 37; 2, 4, 9; 3, 9, 15; 6, 16; id. Inv. 2, 23, 70; id. N. D. 3, 21, 53.

—In sing.: Grāius, i, m., a Greek, Verg. A. 3, 594; Cic. N. D. 2, 36, 91; id. Inv. 1, 24, 35.

— Deriv.: Grāius, a, um, adj., of or belonging to the Greeks, Grecian, Greek: navus repertus homo, Graio patre, Graius homo, rex, Enn. ap. Fest. p. 169 Mull. (Ann. v. 183); so, homo, Lucr. 1, 66; Verg. A. 10, 720: gens, Lucr. 3, 3: urbes, Verg. A. 3, 295; 6, 97: jubae, id. ib. 2, 412: nomen, id. ib. 3, 210: Camena, Hor. C. 2, 16, 38: Alpes, the Grecian Alps, Plin. 3, 20, 24, § 134: Alpium fores, id. 3, 17, 21, § 123; v. Alpes; also called saltus, Nep. Hann. 3, 4.