Ibn Sidah

Abū’l-Ḥasan ʻAlī ibn Ismāʻīl, known as Ibn Sīdah, or Ibn Sīdah'l-Mursī, was a linguist, philologist and lexicographer of Classical Arabic from Andalusia. He compiled the encyclopedia al-Kitāb al-Mukhaṣṣaṣ and the Arabic language dictionary Al-Muḥkam wa-al-muḥīt al-aʻẓam