Arabic letters -as a materialization of the ‘chosen language’ of the Revelation and its esoteric facet- have been employed for the creation of magical amulets in different Muslim communities. Esotericism was accepted by Islam in the Ethiopian Muslim communities and the analyis of the esoteric material in the corpus chosen for this contribution shows a fully Islamic tradition of esoteric believes, amulet-making, divination, etc. but, could this kind of literature constitute a source of information about local peculiarities and the ʿAjamization of Islam as well?