ʻAlī ibn Ismāʻīl Ibn Sīdah

Abū’l-Ḥasan ʻAlī ibn Ismāʻīl, known as Ibn Sīdah, or Ibn Sīdah'l-Mursī, (c.1007-1066), was a linguist, philologist and lexicographer of Classical Arabic from Andalusia. He compiled the encyclopedia al-Kitāb al-Mukhaṣṣaṣ (المخصص) and the Arabic-language dictionary Al-Muḥkam wa-al-muḥīt al-aʻẓam. His contributions to language, literature, and logic were considerable.