ad-umbro, āvi, ātum, 1, v. a., to bring a shadow over a thing, to cast a shadow on, to shade or overshadow by something. In gen. Lit., constr.: aliquid aliqua re (so only in later authors): palmeis tegetibus vineas, Col. 5, 5: adumbrantur stramentis uvae, id. 11, 2, 61.

— Trop.: ut notae quoque litterarum, non adumbratae comarum praesidio, totae ad oculos legentium accederent, Petr. Sat. 105.

— Esp. in painting, to shade, to represent an object with the due mingling of light and shade, σκιαγραφέω (therefore not of the sketch in shadow, as the first outline of a figure, but of a picture already fully sketched, and only wanting the last touches for its completion): quis pictor omnia, quae in rerum natura sunt, adumbrare didicit? Quint. 7, 10, 9: Quod pictor adumbrare non valuit, casus imitatus est, Val. Max. 8, 11 fin.

— Fig. To represent a thing in the appropriate manner: quo in genere orationis utrumque oratorem cognoveramus, id ipsum sumus in eorum sermone adumbrare conati, Cic. de Or. 3, 4; 2, 47; id. Fin. 5, 22: rerum omnium quasi adumbratas intellegentias animo ac mente concipere, i. e. preconceptions, innate ideas, Gr. προλήψεις, id. Leg. 1, 20.

— To represent a thing only in outline, and, consequently, imperfectly: cedo mihi istorum adumbratorum deorum lineamenta atque formas, these semblances, outlines of deities (of the gods of Epicurus), Cic. N. D. 1, 27: consectatur nullam eminentem effigiem virtutis, sed adumbratam imaginem gloriae, imperfectly represented, id. Tusc. 3, 2.

—Hence, adumbrātus, a, um, P. a. Delineated only in semblance, counterfeited, feigned, false: comitia (opp. vera), Cic. Agr. 2, 12, 31: indicium, id. Sull. 18 fin.: Aeschrio, Pippae vir adumbratus, Cic. Verr. 2, 3, 33, § 77: laetitia, * Tac. A. 4, 31.

—Also, Devised in darkness, dark, secret: fallaciae, Amm. 14, 11.

—Comp., sup., and adv. not used.