I.of or belonging to the door: “ancilla,” portress, Vulg. Johan. 18, 17; usu. subst.
I. ostĭā-rĭus , ii, m., a door-keeper, porter (syn.: “janitor, portitor),” Varr. R. R. 1, 13; Plin. 12, 14, 32, § 64; Vulg. 1 Par. 9, 22.—By the rich they were, in early times, occasionally chained up, Suet. Rhet. 3.—In the Christian church, a sexton, Cod. Th. 1, 3, 6; 16, 2, 27.—
II. ostĭāria , ae, f., a female doorkeeper, portress, Ambros. in Luc. 10, § 75; Vulg. 2 Reg. 4, 5; id. Johan. 18, 16.—
III. ostĭārĭum , ii, n., a tax upon doors, a door-tax: “columnaria, ostiaria, frumentum, vecturae imperabantur,” Caes. B. C. 3, 32 (called exactio ostiorum, Cic. Fam. 3, 8, 5).