DOSITHEUS MAGISTER, Greek grammarian, 'flourished at Rome in the 4th century A.D. He was the author of a Greek translation of a Latin grammar, intended to assist the Greek speaking inhabitants of the empire in learning Latin. The Latin grammar used was based on the same authorities as those of Charisius and Diomedes. Dositheus contributed very little of his own. Some Greek-Latin exercises by an unknown writer of the 3rd century, are of value as illustrating the social life of the period and the history of the Latin language. Of these Hermeneu mata, the third book, containing a collection of words and phrases from every day conversation has been preserved. A further ap pendix consisted of anecdotes, letters and rescripts of the emperor Hadrian ; fables of Aesop ; extracts from Hyginus ; a history of the Trojan War, and a legal fragment, De manumissionibus.