(Pompeius), a celebrated grammarian of antiquity, who abridged a work of Verrius Flaccus, De Significatione Verborum; but took such liberties in calculation and criticism, as Gerard Vossius observes, are not favourable to the reputation of his author. A complete edition of his fragments was published by M. Dacier in 1681, for the use of the Dauphin. Scaliger says, that Festus is an author of great use to those who would attain the Latin tongue with accuracy.