I.to lead, turn, or draw off a liquid, from or to a place.
I. Prop.: “de fluvio aquam,” Plaut. Truc. 2, 7, 12 sq.: aqua ex flumine derivata, * Caes. B. G. 7, 72, 3: “flumen,” Hirt. ib. 8, 40, 3; Liv. 5, 15, 12; 5, 16, 9: “derivata in domos flumina,” Sen. N. Q. 1 praef. 7; 4, 2, 8; cf.: “umorem in conliquias,” Col. 2, 8, 3.—
B. to disperse, distribute: “deriventur fontes tui foras,” Vulg. Prov. 5, 16.—
II. Trop.
A. In gen. (repeatedly in Cic.): “nihil in suam domum inde,” Cic. Tusc. 5, 25, 72: “alia ex his fontibus,” Quint. 2, 17, 40; cf.: “hoc fonte derivata clades,” Hor. Od. 3, 6, 19: derivare auimum curaque levare, to divert, * Lucr. 2, 365: “derivandi criminis causa,” Cic. Mil. 10 fin.: “iram alicujus in se,” Ter. Ph. 2, 2, 9: “culpam in aliquem,” Cic. Verr. 2, 2, 20 fin.; cf. id. Att. 4, 3, 2: “culpam derivare in rem,” Quint. 7, 4, 14: “partem aliquam curae et cogitationis in Asiam,” Cic. Phil. 11, 9, 22: “exspectationem largitionis agrariae in agrum Campanum,” id. Att. 2, 16: “alio responsionem suam,” Cic. Verr. 2, 1, 53.—
B. Esp., in gramm., to derive, sc. one word from another (postAug. for ducere), Quint. 1, 6, 38; 8, 3, 31; Diom. p. 310 P. et saep.