(adj.adv.) : prŏ-fundus, a, um, adj.
* Deep, profound, vast (class.; syn. altus).
* Lit.: mare profundum et immensum,Cic. Planc. 6, 15; Curt. 9, 4, 18: per inane profundum,Lucr. 1, 1108: pontus,Verg. A. 5, 614: Acheron,Lucr. 3, 978: Danubius,Hor. C. 4, 15, 21: fornax,Ov. M. 2, 229: valles,Stat. Th. 10, 95: terrae foramen,Just. 24, 6, 9: atque hiavit humus multa, vasta, et profunda,Sall. H. 4, 37 Dietsch: vulnera,Eum. Pan. Constant. 14.—Sup.: profundissimus libidinum gurges,Cic. Sest. 43, 93.
* Subst.: prŏfundum, i, n., depth.
* Trop.
* Transf.
* The depths of the sea, the deep, the sea (class.): ex profundo molem ad caelum erigit, Att. ap. Cic. N. D. 2, 35, 89: jecissem ipse me potius in profundum, ut ceteros conservarem, quam, etc.,Cic. Sest. 20, 45: profundo Vela dabit,Verg. A. 12, 263: vastum,Val. Fl. 8, 314; Sil. 4, 246: summum,Ov. M. 2, 267: indomitum,id. Tr. 1, 11, 39: pater ipse profundi,i.e. Neptune,Val. Fl. 2, 606: genitor profundi,Ov. M. 11, 202: Pamphylium,Col. 8, 16, 9: profundi imperium,Juv. 13, 49; Hor. C. 4, 4, 65; Ov. H. 18, 89; id. M. 5, 439; 11, 197.
* In comic. lang., an abyss, meaning the stomach, in a lusus verbb. with fundus, Plaut. Capt. 1, 2, 79.
* Thick, dense (poet. and in post - class. prose): Erebi nox,Verg. A. 4, 26: silvae,Lucr. 5, 41; Curt. 7, 7, 4: ursi villis profundioribus,Sol. 26.
* Like altus, high (poet.): caelum profundum,Verg. G. 4, 222: caelum,id. E. 4, 51; id. A. 1, 58; Val. Fl. 7, 478: altitudo,Liv. 38, 23; Tac. A. 2, 61.
* Subst.: prŏfundum, i, n., height: altum caeli,Manil. 5, 719.
* In a great quantity, copious, unlimited, without stint (poet.): merum,Stat. Th. 5, 262.
* Of the underworld, infernal (poet.): Manes,Verg. G. 1, 243: Chaos,Val. Fl. 7, 401: Juppiter, i. e. Pluto,Stat. Th. 1, 615: Juno, = Proserpina,Claud. Rapt. Pros. 1, 2.
* Deep, bottomless, profound, boundless, immoderate (class.): profundae libidines,Cic. Pis. 21, 48: avaritia,Sall. J. 81, 1: cupido imperii et divitiarum,id. H. 4, 61, 5: vitia animi,Plin. 30, 2, 5, § 14: cupiditas confundendi omnia,Vell. 2, 125, 2: securitas,Gell. 1, 15, 2: otium,Nazar. Pan. Constant. 35: profundissimā pace florere (=summā),Mamert. Pan. Maxim. 14: caedes,Stat. Th. 10, 831: tempestas,id. Achill. 1, 45: gula,Suet. Vit. 13: venter,Curt. 10, 2, 26: immensusque ruit profundo Pindarus ore,i.e. with inexhaustible copiousness of expression,Hor. C. 4, 2, 7: scientia,Macr. S. 3, 2, 7: cum me somnus profundus in imum barathrum demergit,App. M. 2, p. 125 fin.: in profundam ruinam cupidinis se praecipitare,id. ib. 8, p. 202, 1.
* Deep, obscure, unknown (post-Aug.): in profundo esse,to be unknown,Dig. 32, 15.
* Subst.: prŏfun-dum, i, n., a depth, abyss (class.): in profundo veritatem penitus abstrudere,Cic. Ac. 2, 10, 32: Democritus (dixit) in profundo veritatem esse demersam,id. ib. 1, 12, 44: in profundum ultimarum miseriarum abjectus,Val. Max. 2, 10, 6: immergere aliquem miserabiliter profundo cladium,id. 2, 6, 9, ext. 7: in profundum injuriarum et turpitudinis decidere,id. 2, 9, 1, ext. 2; cf.: de profundis clamavi ad te,Vulg. Psa. 129, 1.—Hence, adv.: prŏfun-dē, deeply (post-Aug.): in bibendo profundius nares mergere,Plin. 8, 42, 66, § 165; Vulg. Osee, 9, 9.

s. TLL