German scholar; lived in the seventeenth and eighteenth centuries. He wrote a work entitled "Mar'eh ha-Ketab bi-Leshon Ashkenaz we-Rashe Tebot" (Berlin, about 1717), a manual, chiefly for the use of women, on reading and writing Judæo-German. It contains rules of vocalization and abbreviations, the correct spellings of names of persons and of Polish and German towns, and a Judæo-German vocabulary. It is from this work that EBER BEN PETHAHIAH plagiarized an abridgment.