Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

2. dĕcŭrĭo, ōnis (also DECURES decuriones, Paul. ex Fest. p. 71, 22, and 75, 9 Müll.; and DECVRIONVS, the same, ib. 49, 16), m. [decuria], the head or chief of a decuria, a decurion. The name was first given by Romulus to the head of the tenth part of a curia (cf. Nieb. Röm. Gesch. 1, p. 354). In the army, the commander of a decuria of cavalry, Varr. L. L. 5, § 91 Müll.; Veget. Mil. 2, 14; Caes. B. C. 1, 23; 1, 13; Tac. A. 13, 40; id. H. 2, 29. After the extension of the Roman dominion, the members of the senate of the municipia and the colonies were called decuriones, Dig. 50, 16, 239; 50, 2; Cod. Just. 10, 31; Cic. Sest. 4, 10; id. Rosc. Am. 9, 25; id. Clu. 14, 41; Vulg. Marc. 15, 43.
Sometimes i. q. praefectus, applied to the overseer of the persons employed in any duty about the court, e. g. a head-chamberlain: cubiculariorum, Suet. Dom. 17, PROCVLVS DECVRIO GERMANORVM (i. e. custodum corporis) TI. GERMANICI, Inscr. Orell. 2923.