This grammarian was active in the eastern Mediterranean, possibly at Constantinople, and was both a student of Priscian (meus immo communis omnium hominum praeceptor… grammaticus Priscianus) and a schoolteacher himself, as is evidenced by the dedication of his work to his pupil Craterus. We may consequently date him to the first half of the 6^th c.  The genitive form of his name appears frequently in many manuscripts, but is often transmitted incorrectly (e.g. ‘Euticius’ or ‘Eutitius’).  Cassiodorus erroneously places him among the orthographi antiqui, and contrasts him with Priscian, whom he identifies - conversely - as modernus.  [A. Balbo; tr. C. L. Caterine].