industrĭa, ae, f. [industrius],
diligence , activity , assiduity , industry : ingenium industriā alitur, Cic. Cael. 19, 45: in agendo, id. de Imp. Pomp. 11, 29: qui in scribendo tantum industriae ponam, spend so much pains on writing , id. Fam. 3, 9, 3: magnā industriā bellum apparavit, Nep. Ages. 3, 2: itineris, assiduity on the journey , Suet. Aug. 8: illi numquam super industriam fortuna fuit, did not surpass his assiduity , Sall. J. 95, 4 al.: qui ipsus se contemnit, in eo est indoles industriae, Plaut. Trin. 2, 2, 41: de or ex industria, diligently , assiduously; and hence, esp., on purpose , purposely , intentionally : de industria, Cic. Or. 44, 151; id. Off. 1, 7, 24; Ter. And. 795; Curt. 5, 3, 9; 5, 4, 8; 6, 1, 3 al.: ex industria, Liv. 1, 56, 8; 26, 51, 11; Curt. 6, 5, 7 al.; also simply: industriā, Plaut. Truc. 1, 1, 37; Plin. 16, 1, 2, § 5; Front. Strat. 1, 5, 16; and: ob industriam, Plaut. Cas. 4, 3, 11.—Rarely in plur.: summis opibus atque industriis, Plaut. Most. 2, 1, 1; so Auct. Her. 3, 7, 14 (cf. Zumpt ad Cic. Verr. 2, 3, 4, § 7, p. 433).