A great German Orientalist, born at Illingen, a village of Würtemberg; studied under Ewald at Tübingen; became professor at Kiel, at Giessen, and finally at Berlin; as professor of Old Testament exegesis made a special study of the Ethiopic languages, and is the great authority in their regard; wrote a grammar and a lexicon of these, as well as works on theology; b . 1823.