Ostrum, ostri, n. g. Virg.The iuyce of the sishe Murex, whereof purple color is made. Also purple or other like colour, searlet.Rosa clarior ostro. Columella. A rose redder or fairer than scarlet.Insignis ostro sonipes.Virg. Coruscum ostrum. Claud Puerile.Stat. Sanguineum. Virg.Puniceum. Seneca. Sidonium. Hor. Rubens. Lucret. Tyrium. Virg. Instrati ostro alipedes. Virgil. Swifte horses trapped with purple or scarlet.Superbo ostro laboratæ vestes.Virg.Vestes perfusæ ostro.Virg.Vestes ostróque autóque rigentes.Virg.Velare humeros ostro. Vir. Wyth a robe of purple or scarlet.
Lewis and Short: Latin dictionary
ostrum, i, n., = o)/streon. I.Lit., the blood of the sea-snail, purple (cf.: murex, purpura): ostro Perfusae vestes, Verg. A. 5, 111; Vitr. 7, 13.—II.Transf.A.Stuff dyed with purple, a purple dress, purple covering, purple: textilibus si in picturis ostroque rubenti Jacteris, Lucr. 2, 35: stratoque super discumbitur ostro,
on purple-covered couches
, Verg. A. 1, 700: Sarrano dormire ostro, id. G. 2, 506: velare umeros ostro, id. A. 7, 814; 4, 134; Prop. 4 (5), 3, 51: cenae sine aulaeis et ostro, Hor. C. 3, 29, 15; id. Ep. 1, 10, 26.—B.The brilliancy of purple, purple, Auct. Aetnae, 332.