bombycinus
From LSJ
σιγᾶν ἄμεινον ἢ λαλεῖν ἃ μὴ πρέπει → it's better to keep silence than to say what's not appropriate (Menander)
Latin > English (Lewis & Short)
bombȳcĭnus: a, um, adj. bombyx,
I of silk, silken (cf. sericus): vestis, Plin. 11, 22, 26, § 76: panniculus, Juv. 6, 260: taenia, Mart. 14, 24; Dig. 34, 2, 23, § 1.—Subst.: bombȳcĭna, ōrum, n., silk garments, Mart. 11, 50, 5; 8, 68, 7; App. M. 8, p. 214, 6.—And bombȳcĭnum, i, n., a silk texture or web, Isid. Orig. 19, 22, 13.
