Castro, castras, castrâre. Plin. To geld: to cut off.Castrare arbores. Plin. To bore holes low in trees.Castrare vites. Cato. To cut.Castrare caudas catulorum. Colum. To soynt.Castrare in sterilitatem. Plin. To geld.Castrarevina saccis. Plin.
Lewis and Short: Latin dictionary
castro, āvi, ātum, 1, v. a. [Sanscr. çastra, knife, sword]. I.To deprive of generative power (both of male and female), to emasculate, castrate, geld: hircum, Plaut. Merc. 2, 2, 1 and 4: agnum, Varr. R. R. 2, 2, 18: gallos, id. ib. 3, 9, 3; Curt. 6, 3, 12; Val. Max. 6, 1, 13; Suet. Dom. 7: sues, Plin. 8, 51, 77, 208; 10, 21, 25, 50; 11, 51, 112, 261 al.—2.Transf. to plants, to prune, lop, trim, Cato, R. R. 33, 2; Plin. 17, 20, 33, 144; 24, 8, 33, 49.—B.Trop.: vina saccis, to pass through a sack or bag, to filter, Plin. 19, 4, 19, 53; cf. id. 14, 22, 28, 138 sq.: siligo castrata, i. e.
, Col. 9, 15, 4; 9, 15, 11; cf.: castrare alvearia, Pall. 7, 7.—B.Trop., to enervate, debilitate: castrata res publica morte Africani, weakened (a vulgar figure, acc. to Cic. de Or. 3, 41, 164; Quint. 8, 6, 15): nisi illum (Maecenatem) enervasset felicitas, immo castrasset, Sen. Ep. 19, 9: libellos,