This paper outlines some of the intricate phonological and morphological features which Moroccan Arabic has developed in contact with Amazigh. Based on previous work, it is argued that Moroccan Arabic has lost the Classical Arabic short vowels, resulting in a vocalic system where length is no longer contrastive. The language has also developed a short central vowel, referred to as schwa, which is used to break up illicit consonant clusters. |). Sibilant harmony, another feature which MA borrowed from Amazigh, is analysed as a long distance process that is confined within a specific domain, consisting of the stem template, plus an empty initial CV. This empty initial site allows for the Moroccan Arabic definite article and the Amazigh causative prefix to harmonize with the stem sibilant when no other morpheme immediately precedes the stem. As for morphological borrowing, MA has borrowed the circumfix /ta…-t/ as an unanalysed complex form, whose components do not show any alternations.