I.to rush or break into, to fall violently upon, assail, attack (syn. incumbo; differing from immineo and impendo, in that it denotes the actual doing of that which they merely threaten; not in Cic. or Cæs.).
I. Lit.: hostes crebri cadunt; “nostri contra ingruunt,” Plaut. Am. 1, 1, 81: “ingruit Aeneas Italis,” Verg. A. 12, 628; cf.: “ingruere hostes,” id. ib. 11, 899: “simul ingruunt saxa jaciunt,” Tac. A. 1, 27: “ingruentes accusatores,” id. ib. 6, 38: “ingruente in Italiam Hannibale,” id. H. 3, 34.—
II. Transf., of things: “ferreus ingruit imber,” Verg. A. 12, 284: “umbra vitibus,” id. G. 2, 410: “nox,” Tac. A. 4, 50: “tela,” id. ib. 1, 65: “ingruere morbi in remiges coeperunt,” Liv. 37, 23, 2: “si bellum ingrueret,” Verg. A. 8, 535; Tac. A. 1, 48: “si nullus ingruat metus,” Plin. 9, 30, 50, § 95: “si quid subitum ingruat,” Tac. A. 4, 2: “damnatio,” id. ib. 4, 35.
