I.sprung from the same stock, related by blood, kindred; and subst.: cognātus , i, m., and cognāta , ae, f., a blood-relation, kinsman (on either the father's or the mother's side; a more comprehensive word than agnatus, q. v.; very freq. and class.).
1. Masc.: “cognatus vester,” Plaut. Poen. 5, 4, 86: “propinqui atque cognati,” Cic. Rosc. Am. 34, 96: “amici cognatique alicujus,” id. Caecin. 5, 15: “cognati atque affines,” id. post Red. ad Quir. 3, 6; Hor. S. 1, 9, 27 et saep.— Gen. plur.: “cognatūm,” Plaut. Am. 2, 2, 209. —With dat.: “is mihi cognatus fuit,” Ter. And. 5, 4, 23; id. Ad. 5, 8, 24.—
2. Fem.: “amicae et cognatae,” Ter. Hec. 4, 2, 16; id. Phorm. 2, 3, 6; 5, 3, 20.—With dat., Plaut. Poen. prol. 97: “negat Phanium esse hanc sibi cognatam,” Ter. Phorm. 2, 3, 5.—
B. Poet., of objects relating to kindred: “rogi,” Prop. 3 (4), 7, 10. “latus,” Ov. M. 9, 412: “corpora,” id. ib. 2, 663; “13, 615: pectora,” id. ib. 6, 498: “moenia,” id. ib. 15, 451: “cineres,” Cat. 68, 98: “urbes,” Verg. A. 3, 502: “sanguis,” id. ib. 12, 29: acies (i. e. between Cœsar and Pompey), Luc. 1, 4 et saep.—
C. Transf.
1. Of animals: “genus,” Plin. 10, 3, 4, § 13.—
2. Of plants: “arbores,” Plin. 16, 10, 16, § 38.—
3. Of other things; so (acc. to Pythagorean notions) of the soul, kindr. with the Deity, Ov. M. 1, 81 (cf. Cic. Sen. 21, 78; id. N. D. 1, 32, 91; Lucr. 2, 991; “Diog. Laert. 1, 28 al.).—Of Thebes: moenia cognata Baccho,” Stat. Th. 1, 11.— “Of beans, in allusion to the doctrine of transmigration: faba Pythagorae cognata,” Hor. S. 2, 6, 63 al.—
II. Trop., kindred, related, connected, like, similar: “nihil est tam cognatum mentibus nostris quam numeri ac voces,” Cic. de Or. 3, 51, 197: “(deus mundo) formam et maxime sibi cognatam et decoram dedit,” id. Univ. 6 init.: “gypsum calci,” Plin. 36, 24, 59, § 182: “vocabula,” Hor. S. 2, 3, 280; cf. Quint. 1, 5, 49: “qui (princeps) quod umquam claritudine eminuit, id veluti cognatum censet tuendum,” Vell. 2, 130, 1.