ISENBERG, Karl Wilhelm. Barmen 5.9.1806 — Kornthal near Stuttgart 10.10.1864. German Missionary and Polyglot. Of humble origin, son of a tinsmith, went to Basel Mission School and in 1830 came to England to learn Arabic and Ethiopian. Worked as Lutheran missionary Ethiopia in 1835-43 and, expelled from there, in India (Bombay) in 1845-51 and 1854-63. In 1851-54 in Germany, where also returned in 1864, already seriously ill and died soon. He knew many languages (esp. Amhara and Marathi, also Gujarati, Tamil, Malayalam, even Chinese) and wrote manuals, etc. on them (e.g. Amhara and Hindi).
Publications: Dictionary of of the Amharic Language. L. 1841; Grammar of the Amharic Language. 1842.
Sources: A.D.B. 14; Wikipedia.