A detailed scientific description of the Andalusi Arabic dialect bundle did not exist until recent times, although the correct understanding of some of its texts bears heavily on many momentous conclusions drawn by contemporary scholars about the extent and depth of cultural interaction between the Arabs and the West. After many years of work on the grammar of this variety of Neo-Arabic, and having produced accurate editions of its materials, the author now undertakes the task of establishing its lexicon, both synchronically and diachronically, by listing words and idioms and trying to provide the etyma of most items. This volume will be useful to students of Arabic dialectology and also to those concerned with any kind of literature produced in Al-Andalus, as well as to Romance scholars who may find the solution to many an etymological riddle here.