Title: al-Ibdāl ilá al-hamzah wa-aḥruf al-ʻillah fī ḍawʼ kitāb Sirr ṣināʻat al-iʻrāb li-Ibn Jinnī
Subjects: Arabic language, Grammar, Vowel gradation, Glottalization (Phonetics), Phonology, History, Morphology
People: Abū al-Fatḥ ʻUthmān Ibn Jinnī (-1002)