Lewis Short
(adj.adv.) : mĕrus, a, um, adj.root mar-, to gleam; cf.: μάρμαρος, marmor, mare; hence, bright, pure
* Pure, unmixed, unadulterated, esp. of wine not mixed with water: merum antiqui dicebant solum: at nunc merum purum appellamus, Paul. ex Fest. p. 124 Müll.
* Lit.: vinum merum, Varr. ap. Non. 4, 295: vina,Ov. M. 15, 331.—Of other things: argentum merum,Plaut. As. 1, 3, 3: undae,Ov. M. 15, 323: lac,id. F. 4, 369: gustus,Col. 3, 21: claror,clear, unclouded,Plaut. Most. 3, 1, 111: mero meridie,Petr. 37.—Hence
* Subst.: mĕrum, i, n., pure, unmixed wine, wine not mixed with water (poet. and in post-Aug. prose): ingurgitare se in merum,Plaut. Curc. 1, 2, 35; Hor. Ep. 1, 19, 11; id. C. 1, 36, 13: objecturus Antonio Cicero merum et vomitum,Quint. 8, 4, 16: meri veteris torrens,Juv. 6, 319; 3, 283; Val. Fl. 5, 595: ad merum pronior,Plin. 14, 22, 28, § 145; 23, 1, 23, § 43.
* Trop., pure, true, real, genuine, unadulterated: meri principes,Cic. de Or. 2, 22, 94: velut ex diutinā siti nimis avide meram haurientes libertatem, immoderate, excessive, Liv. 39, 26; cf. Cic. Rep. 1, 43, 66; but mera libertas, in Horace, signifies true, genuine freedom, Hor. Ep. 1, 18, 8: Achaia, illa vera et mera Graecia,Plin. Ep. 8, 24, 2: Cecropis,a real Athenian,Juv. 6, 187.—Hence, adv.: mĕrē, purely, without mixture, wholly, entirely (ante-class. and post-Aug.): si semel amoris poculum accepit mere,Plaut. Truc. 1, 1, 22.
* Bare, naked, uncovered (poet.): pes,Juv. 6, 158: stabat calce merā, Prud. στεφ. 6, 91.
* In gen., bare, nothing but, only, mere (class.): meri bellatores gignuntur,Plaut. Mil. 4, 2, 85: in medio (foro) ostentatores meri (ambulant),id. Curc. 4, 1, 15: Diogenem postea pallium solum habuisse, et habere Ulixem meram tunicam, nothing but, only, Varr. ap. Non. 344, 10: nihil, nisi spem meram,Ter. Phorm. 1, 2, 95: mera monstra nuntiare,Cic. Att. 4, 7, 1: proscriptiones, meri Sullae,id. ib. 9, 11, 3: scelera loquuntur,id. ib. 9, 13, 1: bellum,id. ib. 9, 13, 8: nugae,id. ib. 6, 3, 5: adfectus,Quint. 11, 1, 52.
Charlton T. Lewis, Charles Short, A Latin Dictionary