Decuria, decuriæ, f. g. Decuriæ. Plin. Fiue bandes of souldiours were appointed among the Romaines to be assistant to iudges or magistrates sitting in causes of life and death: euerie bande was diuided into ten partes, and thereof was called Decuria: or else, because euerie bande contained 1000. men, which is ten hundred. Also the Senators and Iudges were diuided into bandes called Decurias, and the chiefe of eache companie called Decurio. Decuria senatoria.Cic. Tertia decuria iudicum. Cice. Reijcere decutias.Cic. Decuria etiam aliorum. Colum. Classes etiam non maiores qum denûm hominum faciendæ, quas decurias antiqui appellauerunt. Bandes of ten men. Decuria.Plaut.Any company of men great or small.Decurias hominum inducere. Vitru. To bring in a strengthe of men.
Decurio, decúrias, penult, cor. decuriâre. Cicero. To diuide into bandes or companies.Homines vicatim conscribere & decuriare.Cic.Prædæ causa improbos decuriare.Cic.
Lewis and Short: Latin dictionary
dĕcŭrĭa, ae, f. [decem, after the analogy of centuria, from centum], a division consisting of ten, a company of ten, a tithing: decuria, decade, Gr. deka/s (cf. Eng. dozen). Thus Romulus, acc. to Dion. Hal. 2, 7, p. 82 d, formed out of the thirty curiae 300 deka/das (gentes), v. 2. decurio init. So, too, in agriculture: classes etiam non majores quam denum hominum faciundae, quas decurias appellaverunt antiqui, Col. 1, 9, 7; cf. Gell. 18, 7; Sen. Ep. 47, 7; Vitr. 7, 1, 3. Of things: pellium tentoriarum, Valerian. ap. Trebell. Claud. 14.—II. In gen. (cf. centuria), a division, company, class, most freq. of the decuriae of the judges (three, till the time of Augustus, who added a fourth, and Caligula a fifth), Cic. Verr. 2, 2, 32 fin.; id. Phil. 1, 8; 13, 2, 3; id. Clu. 37, 103; Suet. Aug. 32; id. Calig. 16; Quint. 4, 2, 45; Inscr. Orell. 3877; 3155 sq. al.: equitum, Suet. Tib. 41: scribarum, id. Claud. 1; cf. Cic. Verr. 2, 3, 79: VIATORIA, Inscr. Orell. 4076; 2204 al. Said jocosely of a party of boon companions, association, club, Plaut. Pers. 1, 3, 62; Caecil. ap. Non. 139, 19 (Com. 15 Ribb.).