Lewis Short
(verb) : irrēpo (inr-), repsi, reptum, 3, 1. in-repo
* To creep in, into, upon, or to a place.
* Lit., with ad: draconem repente irrepsisse ad eam,Suet. Aug. 94.— With dat.: (salamandra) si arbori irrepsit,Plin. 29, 4, 23, § 74.—Absol.: irrepsi tamen,Petr. 87.—With acc. of place: cubiculum,App. M. 3, p. 139; 8, p. 206: caveam,id. ib. 4, p. 149: hospitium,id. ib. 9, p. 219: Mogontiacum,Amm. 27, 10, 1.
* Transf., of things: haec lues ... inrepsit in Italiam,Plin. 26, 1, 3, § 3; cf. id. 26, 1, 3, § 9: inrepsisse medicinam,to be gradually introduced,id. 30, 1, 1, § 2: irrepentes radiculae,Col. 4, 1, 2: irrepentibus aquis,id. 3, 18, 5 Schneid.
* Trop., to come or get into in an imperceptible manner, to steal in, insinuate one's self: laetitia in sinum, Pompon. ap. Non. 500, 26 (Com. Rel. v. 141 Rib.): eloquentia irrepit in sensus,Cic. Or. 28, 97: in mentes hominum,id. de Or. 3, 53, 203: in tabulas municipiorum,id. Arch. 5, 10: in testamenta locupletium,id. Off. 3, 19, 75.
* With acc.: inrepere paulatim militares animos,Tac. A. 4, 2.
* With dat.: dolor animo irrepet,Sen. Cons. ad Polyb. 26: irrepsit subito canities seni, Prud. prooem. 23.
* Absol.: lentoque irrepunt agmine poenae,Stat. Th. 5, 60: penitus irrepere per luxum,Tac. A. 13, 12; cf. id. H. 2, 63.
Charlton T. Lewis, Charles Short, A Latin Dictionary