Theodosius
5. Of Alexandria, a grammarian.
He is supposed to have lived about the time of Constantine the Great.
Works
His Commentary on the τέχνη γραμματική of Dionysius Thrax, as well as a work by him περὶ ὅρου, and other grammatical works, and also a Commentary on Theodosius himself, by Georgius Choeroboscus, exist in MS. in various libraries. A full account of these MSS. is given by Fabricius and Harless (Bibl. Graec. vol. vi. pp. 301, 308, 350).
Editions
His chief grammatical work, the commentary on Dionysius, amplified by the additions of later Byzantine grammarians, was published by C. G. Göttling, under the title of Theodosii Alexandrini Grammatica, Lips. 1822, 8vo.; the Prooemium having been published before in Osann's Philemonis Grammatici quae supersunt, Berol. 1821, 8vo., and a portion of the work, under the title of Theodori Grammatici Alex. Canones de Declinatione Nominum et Conjugatione Verborum, by Imm. Bekker, in the third volume of his Anecdota, Berol. 1821, 8vo.
Further Information
Hoffman, Lexicon Bibliograph. Scriptor. Graecorum.
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.