I.to double (class.)
I. Lit.: “numerum dierum,” Cic. N. D. 1, 22; so, “numerum,” id. Rep. 2, 20 (twice); Caes. B. G. 4, 36, 2; Tac. H. 2, 30: “modum hastae,” Nep. Iphicr. 1 fin.: “exercitum,” Cic. Att. 5, 18, 2; cf. “copias,” Liv. 7, 7: “fructum,” Varr. R. R. 1, 69, 1; cf.: “reditum pretio,” Col. 12, 52, 2: “rem,” Pers. 6, 78: “stipendium legionibus in perpetuum,” Suet. Caes. 26: “tributa,” id. Vesp. 16: “verba,” i. e. to repeat, Cic. Or. 39, 135 (with iterare); id. Part. 6, 20 sq.; also, to form a bipartite word, to compound (e. g. androgynus): “faciliore ad duplicanda verba Graeco sermone,” Liv. 27, 11.—
II. Transf.
A. (Acc. to duplex, I. B. 3.), to double, i. e. to enlarge, augment, increase: “mobilitas duplicatur,” Lucr. 6, 337: “duplicato ejus diei itinere,” Caes. B. C. 3, 76 fin.; cf. “cursu,” id. ib. 3, 92, 2: “et sol crescentes decedens duplicat umbras,” Verg. E. 2, 67; cf. Ov. M. 11, 550: “duplicata nimbo flumina,” id. Am. 1, 9, 11: “ut in dies magis magisque haec nascens de me duplicetur opinio,” Cic. Fil. Fam. 16, 21, 2: curam, Sall. Or. Cottae, p. 245 ed. Gerl.; cf. sollicitudines, Lucei. in Cic. Fam. 5, 14, 2: bellum, Sall. Fragm. ap. Serv. Verg. E. 2, 67.—
B. In poets and in post-Aug. prose meton. (effectu pro causa), to double up, to bow, bend a person or thing: nos duplicat timos, Naev. ap. Non. p. 487 (Trag. v. 45 Rib.): “duplicato poplite,” Verg. A. 12, 927: “corpus frigore,” Val. Max. 5, 1, 1 ext.: “virum dolore,” Verg. A. 11, 645; Ov. M. 6, 293; Stat. Th. 3, 89; 6, 859.—
C. To double by dividing, to split in two, tear apart, tear (late Lat.): “capillum,” Cels. 7, 7, 8: “vesicam,” id. 7, 26, 2 fin. al.—Hence, * dū^plĭcāto , adv., twice as much: “degredi,” Plin. 2, 17, 14, § 76.