Abu Hayyan al-Gharnati

Abū Ḥayyān Athīr ad-Dīn al-Gharnāṭī (, November 1256 – July 1344 CE / 654 - 745 AH), whose full name is Muḥammad ibn Yūsuf bin ‘Alī ibn Yūsuf ibn Hayyān (), better known as Abū Ḥayyān al-Gharnati (, was an Andalusian Sunni Islam scholar. He was the leading commentator on the Quran and foremost Arabic grammarian of his era. He was also regarded as the best scholar on Quranic recitation of his time. In addition, he was recognized for his scholarship in Islamic jurisprudence, hadith, and history.

His magnum opus, ''Al-Bahr al-Muhit'' (Explanation of the Ocean) is the most important reference on Qur'anic expressions and the issues of grammar, vocabulary, etymology, recitation, and the transcriber-copyists of the Qur'an. Quite exceptionally for a linguist of Arabic of his day was his strong interest in non-Arabic languages. He wrote several works of comparative linguistics for Arabic speakers, and gives extensive comparative grammatical analysis and explanation. Provided by Wikipedia