SAGY´LIUM (Σαγύλιον), a castle situated on a steep rock in the interior of Pontus, which was one of the strongholds of the Pontian kings. (Strab. xii. pp. 560, 561.) [L.S]
Dictionary of Greek and Roman Geography, illustrated by numerous engravings on wood. William Smith, LLD. London. Walton and Maberly, Upper Gower Street and Ivy Lane, Paternoster Row; John Murray, Albemarle Street. 1854.