Charlton T. Lewis, Charles Short, A Latin Dictionary

I.acc. plur.; in the abl. gratibus, Tac. A. 12, 37), f. gratus, thanks rendered (esp. to the gods: gratias agere being the usual form to human beings), thanksgiving: “ut Ephesiae Dianae lauta laudes Gratesque agam,” Plaut. Mil. 2, 5, 2: “diis laudes gratesque agunt,” Liv. 7, 36, 7; 26, 48, 3; cf. “in the following the passages,” Tac. A. 1, 69 and 12, 37: “vobis (dis) grates ago atque habeo,” Plaut. Pers. 5, 1, 4: “grates deis immortalibus agere habereque,” Liv. 23, 11, 12 Weissenb. ad loc.; cf. “23, 12, 7: dis populoque Romano grates agunt,” id. 10, 25, 5; 45, 39, 12: grates tibi ago, summe Sol, vobisque, reliqui caelites, * Cic. Rep. 6, 9: “grates dis agere,” Liv. 5, 23, 3; 30, 17, 6; Tac. A. 13, 41; cf. “also: nec esse, qui diis grates agendas censeant,” Liv. 30, 21, 9: salsipotenti et multipotenti Jovis fratri ... laudes ago et grates gratiasque habeo, Plaut. Trin. 4, 1, 2: “laudes et grates reversis legionibus habens,” Tac. A. 1, 69; cf.: “Agrippinam iisdem quibus principem laudibus gratibusque venerati sunt,” id. ib. 12, 37: “vobis, o fidissime civium atque amicorum, grates ago habeoque,” Curt. 9, 6, 17: “dexteram ejus amplexi grates habebant velut praesenti deo,” Curt. 3, 16, 17; Tac. A. 1, 69 Draeger ad loc.: “Tiberius egit grates benevolentiae patrum,” id. ib. 6, 2: “o decus Italiae, virgo, quas dicere grates Quasve referre parem?” Verg. A. 11, 508: “grates persolvere dignas Non opis est nostrae, Dido,” id. ib. 1, 600: “grates rependere,” Stat. S. 3, 3, 155: “quibus pro bene factis fateor deberi tibi Et libertatem et multas grates gratias (cf. above: grates gratiasque),” Plaut. Poen. 1, 1, 6.—Sarcastically: “at tibi pro scelere, exclamat, pro talibus ausis, Di .. Persolvant grates dignas et praemia reddant Debita!” Verg. A. 2, 537.