ăd-ŏrĭor, ortus, 4, v. dep. (part. adorsus, Gell. 9, 2, 10; see the passage at the end of this art.; the second and third pers. of the pres. ind., acc. to the fourth conj.: adorīris, adorītur; forms analogous to orĕris, orĭtur, of the simple verb occur in Lucr. 3, 513; Lucil. ap. Prisc. p. 880 P.), to rise up for the purpose of going to some one or something, or of undertaking something great, difficult, or hazardous (clandestinely, artfully, when a hostile approach is spoken of; while aggredi indicates a direct, open attack from a distance: aggredimur de longinquo; adorimur ex insidiis et ex proximo; nam adoriri est quasi ad aliquem oriri, i. e. exsurgere, Don. ad Ter. Ad. 3, 3, 50; cf. the same ad Heaut. 4, 5, 9). In gen., to approach a person in order to address him, to ask something of him, to accost, etc. (cf. accedo, adeo): cesso hunc adoriri? (quasi de improviso alloqui, Don.), Ter. Heaut. 4, 5, 9: si ab eo nil fiet, tum hunc adorior hospitem, id. Phorm. 4, 2, 15.— Esp. To approach one with hostile intent, to assault, assail, Lucil. ap. Prisc. p. 886 P.: inermem tribunum gladiis, Cic. Sest. 37: a tergo Milonem, id. Mil. 10: navem, Cic. Verr. 2, 5, 34 fin.: impeditos adoriebantur, Caes. B. G. 4, 26: hos Conon adortus magno proelio fugat, Nep. Con. 4: urbem vi, Liv. 1, 53: oppugnatio eos aliquanto atrocior quam ante adorta est, id. 21, 11; cf. 21, 28: praetorem ex improviso in itinere adortus, Tac. A. 4, 45: variis criminationibus, id. ib. 14, 52: minis, id. H. 1, 31: jurgio, Ter. Ad. 3, 3, 50: senatum, Suet. Caes. 9.—Also absol., Hirt. B. Afr. 69.— To enter upon any course of action, esp. to engage in or undertake any thing difficult or dangerous; with acc. or inf.: commutare animum quicumque adoritur, Lucr. 3, 515: ne convellere adoriamur ea, quae non possint commoveri, Cic. de Or. 2, 51, 205; id. Att. 13, 22: Ἡρακλείδιον, si Brundisium salvi, adoriemur (sc. scribere), id. ib. 16, 2; Auct. Her. 2, 4: majus adorta nefas, Ov. P. 2, 2, 16: hi dominam Ditis thalamo deducere adorti, Verg. A. 6, 397; cf. id. ib. 7, 386; Cat. 63, 11.—So esp. in the histt., Nep. Dion. 6: hanc (Munychiam) bis tyranni oppugnare sunt adorti, id. Thras. 2, 5; so also Liv. 2, 51; 28, 3; 37, 5, 32; 40, 22; 43, 21; 44, 12; cf. also 3, 44: hanc virginem Appius pretio ac spe pellicere adortus.— Once in the form of the part. perf. adorsus: qui Hippiam tyrannum interficere adorsi erant, Gell. 9, 2, 10.