Lewis Short
dĕcus (noun N) : Sanscr. daças, fame; Gr. δόξα; cf. decet, any thing that ornaments, embellishes, adorns, honors, etc.;
* Ornament, grace, embellishment, splendor, glory, honor, dignity (class. and freq.; a favorite word with Cicero, in oratorical lang.).
* In gen.
* With gen.: hostium spolia, decora atque ornamenta fanorum,Cic. Verr. 2, 4, 44; cf.: senator populi Romani, splendor ordinis, decus atque ornamentum judiciorum,id. Caecin. 10, 28; so, too, decus ornamentumque senectutis,id. de Or. 1, 45, 199; id. Prov. Cons. 11, 28: ut hominis decus ingenium, sic ingenii ipsius lumen est eloquentia,id. Brut. 15, 59; cf. id. Phil. 2, 22, 54: ad decus et ad laudem civitatis,id. N. D. 1, 4; cf. id. Brut. 97; cf. also id. Fin. 1, 10 fin.; id. Ac. 1, 9, 33: dignitatem et decus sustinere,id. Off. 1, 34, 124 et saep.: O decus Phoebi et dapibus supremi Grata testudo Jovis,Hor. Od. 1, 32, 13: lucidum caeli,id. Carm. Sec. 2: equitum Maecenas,id. Od. 3, 16, 20; cf. id. ib. 1, 1, 2 and id. ib. 2, 17, 4: electos juvenes simul et decus innuptarum, the ornaments, i. e. the most beautiful of the maidens, Catull. 64, 78 al.: castique decus servare pudoris,Ov. M. 13, 480: oris,i. e. beauty,id. ib. 3, 422: decus Asteriae = Asteria decens or pulchra,Verg. Cul. 15.
* Transf.
* A deed of honor: tanti decoris testis,Tac. A. 15, 50.—Esp., plur., decora, honorable achievements, valiant deeds: cum multa referret sua familiaeque decora,Liv. 3, 12, 2: militiae decora,id. 2, 23, 4: belli,id. 6, 20, 7 (cf.: dedecora militiae,id. 3, 51, 12): Lacedaemonii vetera, Macedones praesentia decora intuebantur,Curt. 6, 1, 8.
* Esp., moral dignity, virtue, honor: cum quod decus antiqui summum bonum esse dixerunt, hic solum bonum dicat, etc.,Cic. Leg. 1, 21, 55 (for which, shortly before, solum bonum esse quod honestum esset): quos (sc. Epicureos) nisi redarguimus, omnis virtus, omne decus, omnis vera laus deserenda est,id. Fin. 2, 14, 44; so with honestas,id. Fin. 2, 17, 56; cf. ib. 2, 11, 35; id. Off. 1, 5 fin.: sed ei (sc. Semproniae) cariora semper omnia quam decus atque pudicitia fuit,Sall. C. 25, 3; 54, 5.
Charlton T. Lewis, Charles Short, A Latin Dictionary