SG Heritage Dictionary

Decurion [Noun] Webster's Dictionary 1828

An officer in the Roman army, who commanded a decuria, or ten soldiers, which was a third part of the turma, and a thirtieth of the legion of cavalry.

Decurion [Noun] Webster's Dictionary 1913

A head or chief over ten; especially, an officer who commanded a division of ten soldiers.

Decurionate [Noun] Webster's Dictionary 1913

The office of a decurion.