This work is a profound scholarly investigation and critical edition of classical texts in Arabic Morphology (Sarf). Specifically, it focuses on the "Hashiya" (Super-commentary) of al-Abbadi on the "Hashiya" of al-Laqani, which in turn explains the famous commentary by al-Taftazani on the "Izz al-Din al-Zanjani" treatise (Sarf al-'Izzi).