Hephae'stion（Ἡφαιστίων). 1. A Greek grammarian, who instructed the emperor Verus in Greek, and accordingly lived about the middle of the second century after Christ. (Capitolin. Verus Imp. 2.) It is commonly supposed that he is the same as the Hephaestion whom Suidas calls an Alexandrian grammarian.
WorksThe Hephaestion mentioned by Suidas wrote versified manuals on grammatical subjects.
μέτρων Πεδισμοί, which is believed to be the same as the Ἐγχειρίδιον περὶ μέτρων, which has come down to us under the name of Hephaestion, and is a tolerably complete manual of Greek metres, forming, in fact, the basis of all our knowledge on that subject. This little work is of great value, not only on account of the information it affords us on the subject it treats of, but also on account of the numerous quotations it contains from other writers, especially poets.