Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
bīgae, ārum (in plur. through the whole ante-Aug. per.; cf. Varr. L. L. 9, 39, 142; 10, 2, 165; 10, 3, 177; Serv. ad Verg. A. 2, 272; Charis. p. 20 P.; post-Aug. also in sing. bīga, ae; so Stat. S. 1, 2, 45; 3, 4, 46; id. Th. 1, 338; Sen. Herc. Oet. 1520; Plin. 34, 8, 19, § 89; 35, 11, 40, § 141; Tac. H. 1, 86; Suet. Tib. 26; Val. Max. 1, 8; Inscr. Orell. 2545; Vulg. Isa. 21, 9; v. Neue, Formenl. 1, 462; v. also trigae and quadrigae), f. [for bijugae from bis-jugum], a pair of horses or (rarely) of other animals; also, a two-horsed car or chariot: bigas primas junxit Phrygum natio: quadrigas Erichthonius, Plin. 7, 56, 57, § 202: Rhesi niveae citaeque bigae, Cat. 55, 26: Hector raptatus bigis, Verg. A. 2, 272: et nox atra polum bigis subvecta tenebat, id. ib. 5, 721; Val. Fl. 3, 211: roseae Aurorae, Verg. A. 7, 26 al.: cornutae, a team for ploughing, Varr. ap. Non. p. 164, 23; Isid. Orig. 18, 36, 1 and 2.
Stamped on a coin, Plin. 33, 3, 13, § 46; v. bigatus.
Adj.: equis bigis meare, Manil. 5, 3.