The death of Marcel Cohen on 5 November 1974 was a grievous loss to linguistic scholarship, and to the study of Hamito-Semitic, above all of Ethiopian languages. Indeed, Hamito-Semitic studies owe to him their ‘ennoblement’ during the first half of this century. In Ethiopian studies Marcel Cohen acquired a pre-eminent position and became one of our masters along with Ludolf and Dillmann, Praetorius, Mittwoch and Littmann, Guidi and Conti Rossini, who had preceded him since the seventeenth century.