HESYCHIUS

A Greek grammarian of Alexandria, who lived probably towards the end of the 4th century A.D. He composed, with the assistance of the works of earlier lexicographers (especially that of Diogenianus), a lexicon, which has come down to us in a very confused form, but is nevertheless among the most important sources of our knowledge of the Greek language, and throws much light on the interpretation and criticism of Greek poets, orators, historians, and physicians.