tĕnē̆brōsus, a, um, adj. [tenebrae], dark, gloomy (poet. and in post-Aug. prose).
I Lit.: aëra dimovit tenebrosum et dispu lit umbras, Verg. A. 5, 839: palus, id. ib. 6, 107: Tartara, Ov. M. 1, 113: sedes, id. ib. 5, 359: specus tenebroso caecus hiatu, id. ib. 7, 409: carcer, Luc. 2, 79: balnea Grylli, Mart. 1, 60, 3 (cf. id. 2, 14, 13): caeruleo tenebrosa situ, Val. Fl. 3, 400: silentia, Claud. Rapt. Pros. 2, 329. — Comp. : carcer, Tert. Anim. 1 fin. — Subst. : tĕnē̆brōsum , i, n., the dark , Lact. 7, 4, 12; and plur.: in tenebrosis, Vulg. Thren. 3, 6. —
II Trop.: cor, Prud. Apoth. 195: tenebrosissimus error, Cod. Just. 6, 43, 3 med. — * Adv.: tĕ-nē̆brōsē , darkly , Hier. in Ion. 4, 6 (with occulte).