Grammarian of the last third of the thirteenth century. He wrote, under the title "Hassagat ha-Hassagah," a criticism of Ibn Jana?'s "Kitab al-Mustal?a?." Me�r's work is known, however, only through passages quoted by Profiat Duran ("Ma'aseh Efod," pp. 116, 173). Joseph ibn Kaspi, who knew Me�r b. David personally, quotes, in his supercommentary on Ibn Ezra, an explanation which he heard from Me�r's lips (see Dukes, "Na?al ?edumim," p. 9). Me�r is probably identical with the grammarian R. David, whose note on Job 7:4 is quoted by Abraham Bedersi in his work on synonyms, "?otam Toknit" (p. 189; comp. Introduction, p. ).