president Copy link Outline I. Person presidingII. Governor1. praeses, ĭdis2. praefectus • president: I. Person presiding: praefectus, with gen. or dat.: v. superintendent. Often better expr. by praesideo, praesum: v. to preside. II. Governor: 1. praeses, ĭdis: Suet. Aug. 23 (gen. term, including all provincial governors): Dig. 2. praefectus: v. governor.