F / factĭōnārĭus
noun

factĭōnārĭus

gen. factĭōnārii · gender masculine · decl. 2nd
factio, II. B. 2.
the head of a company of charioteers
the head of a company of charioteers, Cod. Th. 15, 10, 1; Inscr. Grut. 338.