(v. a.adv.) : ăpĕrĭo, ĕrŭi, ertum, 4, v. a. (
* Fut. aperibo, Plaut. Truc. 4, 2, 50; Pompon. ap. Non. p. 506, 30) [ab-pario, to get from, take away from, i.e. to uncover, like the opp. operio, from obpario, to get for, to put upon, i. e. to cover; this is the old explanation, and is received by Corssen, Ausspr. I. p. 653; II. p. 410, and by Vanicek, p. 503], to uncover, make or lay bare.
* Lit.: patinas,Plaut. Ps. 3, 2, 51: apertae surae, Turp. ap. Non. p. 236, 16: apertis lateribus,Sisenn. ib. p. 236, 26: capite aperto esse,Varr. ib. p. 236, 25; p. 236, 28: ut corporis partes quaedam aperiantur,Cic. Off. 1, 35, 129: caput aperuit,id. Phil. 2, 31; Sall. H. Fragm. ap. Non. p. 236, 20: capita,Plin. 28, 6, 17, § 60: aperto pectore,Ov. M. 2, 339; and poet. transf. to the person: apertae pectora matres,id. ib. 13, 688: ramum,Verg. A. 6, 406 al.—Trop., to make visible, to show, reveal, Liv. 22, 6: dispulsā nebulā diem aperuit,id. 26, 17 (cf. just before: densa nebula campos circa intexit): dies faciem victoriae,Tac. Agr. 38: lux aperuit bellum ducemque belli,Liv. 3, 15: novam aciem dies aperuit,Tac. H. 4, 29: his unda dehiscens Terram aperit,opens to view,Verg. A. 1, 107.—From the intermediate idea of making visible
* Metaph.
* To unclose, open: aperto ex ostio Alti Acheruntis, Poët. ap. Cic. Tusc. 1, 16, 37: aperite aliquis ostium,Ter. Ad. 4, 4, 26; so id. Heaut. 2, 3, 35: forem aperi,id. Ad. 2, 1, 13: fores,id. Eun. 2, 2, 52; Ov. M. 10, 457; Suet. Aug. 82: januas carceris,Vulg. Act. 5, 19: fenestram,ib. Gen. 8, 6: liquidas vias,to open the liquid way,Lucr. 1, 373; so Verg. A. 11, 884: sucum venis fundere apertis,to pour out moisture from its open veins,Lucr. 5, 812: saccum,Vulg. Gen. 42, 27: os,ib. ib. 22, 28: labia, ib. Job, 11, 5: oculos,ib. Act. 9, 8: accepi fasciculum, in quo erat epistula Piliae: abstuli, aperui, legi,Cic. Att. 5, 11 fin.; so id. ib. 1, 13; 6, 3: aperire librum,Vulg. Apoc. 5, 5; 20, 12: testamentum,Plin. 7, 52, 53, § 177 (cf.: testamentum resignare,Hor. Ep. 1, 7, 9); Suet. Caes. 83; id. Aug. 17: sigillum aperire,to break,Vulg. Apoc. 6, 3 al.: ferro iter aperiundum est,Sall. C. 58, 7: locum ... asylum,to make it an asylum,Liv. 1, 8: subterraneos specus,Tac. G. 16: navigantibus maria,Plin. 2, 47, 47, § 122: arbor florem aperit,id. 12, 11, 23, § 40 et saep.: aperire parietem, to open a wall, in order to put a door or window in it, Dig. 8, 2, 40: alicui oculos aperire, to give sight to (after the Heb.), Vulg. Joan. 9, 10; 9, 14 al.; so, aures aperire,to restore hearing to,ib. Marc. 7, 35.
* Trop.: nec ita claudenda est res familiaris, ut eam benignitas aperire non possit,Cic. Off. 2, 15, 54: amicitiae fores. id. Fam. 13, 10: multus apertus cursus ad laudem,id. Phil. 14, 6 fin.: tibi virtus tua reditum ad tuos aperuit,id. Fam. 6, 11: philosophiae fontes,id. Tusc. 1, 3, 6; id. Mil. 31, 85 et saep.: alicujus oculos aperire, to open one's eyes, make him discern (after the Heb.), Vulg. Gen. 3, 5; 3, 7; ib. Act. 26, 18; so, alicujus cor aperire,ib. ib. 16, 14: ventus incendio viam aperuit, Liv. 6, 2: occasionem ad invadendum,id. 4, 53; so id. 9, 27: si hanc fenestram aperueritis (i.e. if you enter upon the way of complaint), nihil aliud agi sinetis, Suet. Tib. 28 (cf. Ter. Heaut. 3, 1, 72: Quantam fenestram ad nequitiem patefeceris!): quia aperuisset gentibus ostium fidei,Vulg. Act. 14, 27; ib. Col. 4, 3.— So of the new year, to open it, i.e. begin: annum,Verg. G. 1, 217: contigit ergo privatis aperire annum (since the consul entered upon his office the first of January),Plin. Pan. 58, 4 Gierig and Schaef.—So also of a school, to establish, set up, begin, or open it: Dionysius tyrannus Corinthi dicitur ludum aperuisse,Cic. Fam. 9, 18; so Suet. Gram. 16; id. Rhet. 4.—Poet.: fuste aperire caput,i.e. to cleave, split the head,Juv. 9, 98.
* Opp. to that which is concealed, covered, dark, open, clear, plain, evident, manifest, unobstructed: nam nihil aegrius est quam res secernere apertas ab dubiis,nothing is, indeed, more difficult than to separate things that are evident from those that are doubtful,Lucr. 4, 467; so id. 4, 596; 1, 915; 5, 1062: cum illum ex occultis insidiis in apertum latrocinium conjecimus,Cic. Cat. 2, 1: simultates partim obscurae, partim apertae,id. Manil. 24: quid enim potest esse tam apertum tamque perspicuum?id. N. D. 2, 2, 4: quid rem apertam suspectam facimus?Liv. 41, 24: non furtim, sed vi aperta,id. 25, 24: apertus animi motus,Quint. 10, 3, 21: invidia in occulto, adulatio in aperto,Tac. H. 4, 4 et saep.—So, in rhet., of clear, intelligible discourse: multo apertius ad intellegendum est, si, etc. ... apertam enim narrationem tam esse oportet quam, etc.,Cic. de Or. 2, 80, 328; cf. id. Inv. 1, 20.—Hence
* Transf. to mental objects, to disclose something unknown, to unveil, reveal, make known, unfold, to prove, demonstrate; or gen. to explain, recount, etc.: occulta quaedam et quasi involuta aperiri,Cic. Fin. 1, 9, 30: explicanda est saepe verbis mens nostra de quāque re atque involutae rei notitia definiendo aperienda est,id. Or. 33, 116: alicui scripturas aperire,Vulg. Luc. 24, 32: tua probra aperibo omnia,Plaut. Truc. 4, 2, 50: ne exspectetis argumentum fabulae; hi partem aperient,Ter. Ad. prol. 23: non quo aperiret sententiam suam, sed etc.,Cic. de Or. 1, 18, 84: eo praesente conjurationem aperit,Sall. C. 40, 6: naturam et mores,id. ib. 53 fin.; so id. ib. 45, 1; 47, 1; id. J. 33, 4: lux fugam hostium aperuit,Liv. 27, 2: aperiri error poterat,id. 26, 10: casus aperire futuros,to disclose the future,Ov. M. 15, 559: futura aperit,Tac. H. 2, 4.—So also, se aperire or aperiri, to reveal one's true disposition, character: tum coacti necessario se aperiunt,show themselves in their true light,Ter. And. 4, 1, 8: studio aperimur in ipso,Ov. A. A. 3, 371: exspectandum, dum se ipsa res aperiret,Nep. Paus. 3, 7; Quint. prooem. § 3.—Sometimes constr. with acc. and inf., a rel.-clause, or de: cum jam directae in se prorae hostes appropinquare aperuissent,Liv. 44, 28: domino navis, quis sit, aperit,Nep. Them. 8, 6; so id. Eum. 13, 3: de clementiā, Auct. ad Her. 2, 31.—In a gen. sense (freq. in epistt.) in Cic. Att. 5, 1, 2: de Oppio factum est, ut volui, et maxime, quod DCCC. aperuisti, you promised, i.e. that it should be paid to him (= ostendisti te daturum, Manut.); cf. the more definite expression: de Oppio bene curāsti, quod ei DCCC. exposuisti,id. ib. 5, 4, 3.—Hence, ăpertus, a, um, P. a.; pr., opened; hence, open, free.
* In gen.: tam aperte irridens,Ter. Phorm. 5, 8, 62: ab illo aperte tecte quicquid est datum, libenter accepi,Cic. Att. 1, 14, 4; id. Or. 12, 38; id. Am. 18, 67: cum Fidenae aperte descissent,Liv. 1, 27: aperte quod venale habet ostendit,Hor. S. 1, 2, 83: aperte revelari,Vulg. 1 Reg. 2, 27: non jam secretis colloquiis, sed aperte fremere,Tac. A. 11, 28: aperte adulari,Cic. Am. 26, 99: aperte mentiri,id. Ac. 2, 6, 18: aperte pugnare, id. ap. Aquil. Rom. 10: aperte immundus est,Vulg. Lev. 13, 26.—Comp.: cum ipsum dolorem hic tulit paulo apertius,Cic. Planc. 34; id. Att. 16, 3, 5; Curt. 6, 1, 11: ab his proconsuli venenum inter epulas datum est apertius quam ut fallerent,Tac. A. 13, 1.—Sup.: hinc empta apertissime praetura,Cic. Verr. 1, 100: equite Romano per te apertissime interfecto,id. Har. Resp. 30: largiri,id. ib. 56: praedari,Cic. Verr. 1, 130.
* Esp. of what is set forth in words or writing, plainly, clearly, freely, without reserve: nempe ergo aperte vis quae restant me loqui?Ter. And. 1, 2, 24; id. Phorm. 4, 3, 49: aperte indicat (lex) posse rationem habere non praesentis,Cic. ad Brut. 1, 5, 3: Non tu istuc mihi dictura aperte es, quicquid est?Ter. Eun. 5, 1, 3: narrare,id. Heaut. 4, 3, 24: scribere,Cic. Fam. 5, 7, 3; Quint. 1, 5, 43.—Comp.: Planius atque apertius dicam,Cic. Rosc. Com. 14, 43: distinguere,Quint. 3, 6, 45.—Sup.: istius injurias quam apertissime vobis planissimeque explicare,Cic. Verr. 2, 64, 156: aliquid apertissime ostendere,Quint. 5, 12, 11.
* Trop.
* Esp. as subst.: in aperto esse
* To be clear, evident, well known, notorious, ἐν τῷ φανερῷ εἶναι: ad cognoscendum omnia illustria magis magisque in aperto,Sall. J. 5, 3.
* To be easily practicable, easy, facile (the figure taken from an open field or space): agere memoratu digna pronum magisque in aperto erat,there was a greater inclination and a more open way to,Tac. Agr. 1: hostes aggredi in aperto foret,id. H. 3, 56: vota virtusque in aperto omniaque prona victoribus,id. Agr. 33.
* Of character, without dissimulation, open, frank, candid: animus apertus et simplex,Cic. Fam. 1, 9; id. Off. 3, 13, 57: pectus,id. Lael. 26, 97. —Hence, ironically: ut semper fuit apertissimus, as he has always been very open, frank (for impudent, shameless), Cic. Mur. 35.—Hence, ăpertē, adv., openly, clearly, plainly.

s. TLL