I.nom. sing. does not occur; and the dat. perh. only in Front. Ep. ad Verr. 6 fin.; abl. ope, but opi, Varr. L. L. 5, 32, 141), f. Sanscr. ap-nas, gain; Gr. ἄφενος, wealth; cf.: opulentus. copia = co-opia.
I. Power, might, strength, ability, in abstr.: Romani scalis summā nituntur opum vi, Enn. ap. Macr. S. 6, 1 (Ann. v. 168 Vahl.); so Verg. A. 12, 552: “summā ope niti,” Sall. C. 1, 1: “omni ope atque operā enitar,” will employ all my strength and efforts, Cic. Att. 14, 14, 5: “omnibus viribus atque opibus repugnare,” with all our powers, id. Tusc. 3, 11, 25: “quācumque ope possent,” id. Mil. 11, 30: “grates persolvere dignas Non opis est nostrae,” is not in our power, Verg. A. 1, 601. —
B. In concr., means of any kind that one possesses; property, substance, wealth, riches, treasure; military or political resources, might, power, influence, etc. (in this signif. mostly in plur.; cf.: facultates. copiae, divitiae): ut scias, quanto e loco, Quantis opibus, quibus de rebus lapsa fortuna accidat, Enn. ap. Cic. Tusc. 3, 19, 44 (Trag. v. 396 Vahl.): “nos tamen efficimus pro opibus nostris moenia,” Plaut. Stich. 5, 4, 13: “condere,” to hoard up treasures, Verg. G. 2, 507; cf.: “magnas inter opes inops,” Hor. C. 3, 16, 28; 2, 12, 22: “ruris parvae,” Ov. Tr. 3, 10, 59: “amplae,” Plin. 9, 35, 59, § 122: “vita opibus firma, copiis locuples, gloriā ampla, virtute honesta,” Cic. Att. 8, 11, 1: “cui tenues opes, nullae facultates, exiguae amicorum copiae sunt,” id. Quint. 1, 2: “in bonis numerabis divitias, honores, opes,” id. Fin. 5, 27, 81; cf.: “divitiae ut utare, opes ut colare, honores ut laudere,” id. Lael. 6, 22: “opibus et copiis affluentes,” id. Agr. 2, 30, 82: “opes violentas concupiscere,” id. Phil. 1, 12, 129: “Trojanas ut opes et lamentabile regnum Eruerint Danai,” Verg. A. 2, 4: ad divos adeunto caste, pietatem adhibento, opes amovento, lay aside display or show, Cic. Leg. 2, 8, 19.—In sing.: vidi ego te, astante ope barbaricā, etc., Enn. ap. Cic. Tusc. 3, 19, 44 (Trag. v. 120 Vahl.); so, “barbarica,” Verg. A. 8, 685.—
II. Aid, help, support, assistance, succor (syn.: subsidium, suppetiae, auxilium): opis egens tuae. Enn. ap. Cic. Tusc. 3, 19, 44 (Trag. v. 126 Vahl.): pro factis reddere opis pretium, id. ap. Sen. Ep. 18, 5 (Epigr. v. 6 ib.): “arripe opem auxiliumque ad hanc rem,” Plaut. Mil. 2, 2, 65; Cic. Att. 9, 16, 1: “sine tuā ope,” id. Att. 16, 13 c, 2: “aliquid opis rei publicae tulissemus,” id. Fam. 4, 1, 1: “opem petere ab aliquo,” id. Tusc. 5, 2, 5: “confugere ad opem alicujus,” id. Font. 11, 35: ferte opem, Enn. ap. Cic. Div. 1, 31, 67 (Trag. v. 86 Vahl.): “exitium superabat opem,” i. e. baffled medical skill. Ov. M. 7, 527: “afferre opem,” to yield assistance, id. ib. 8, 601: “admovere,” id. R. Am. 116.
