Ā̆treus (dissyl.; cf. Quint. 1, 5, 24), ei, m., = Ἀτρεύς.
I A son of Pelops (hence, Pelopeïus, Ov. H. 8, 27) and Hippodamia , brother of Thyestes , father of Agamemnon and Menelaus , king of Argos and Mycenae , Ov. M. 15, 855.—Atrea (acc.), Ov. Am. 3, 12, 39.—Atreu (voc.), Sen. Thyest. 486; 513.—
II Derivv.
A Ā̆trēĭus or Ā̆trēus , a, um, adj., of or belonging to Atreus , poet. for Argive , Stat. Th. 8, 743; cf. Pompei. Gram. p. 113 Lind.—
B Ā̆trīdes (Atridă in nom., Prop. 2, 14, 1), ae, m., a male descendant of Atreus; Atrides , absol. usu. for Agamemnon; in plur.: Atridae, the Atrides , i. e. Agamemnon and Menelaus , Plaut. Bacch. 4, 9, 1: non minor Atrides, non bello major et aevo, i. e. not Menelaus , not Agamemnon , Ov. M. 12, 623; cf. id. ib. 13, 359; 15, 162.—In dat. and abl. plur. : Atridis, Hor. S. 2, 3, 203; Ov. P. 1, 7, 32.—In acc. plur. : Atridas superbos, Hor. C. 1, 10, 13.—In sing.,
α For Agamemnon , Prop. 4, 6, 23; Hor. C. 2, 4, 7; id. Ep. 1, 2, 12; id. S. 2, 3, 187; Ov. M. 13, 189; 13, 230; 13, 365; 13, 439; 13, 655 et saep.—
β For Menelaus , Hor. Ep. 1, 7, 43; Ov. M. 15, 805.—Sarcastically: Atrides, of Domitian, as a haughty ruler of Rome, Juv. 4, 65.