Searchable Online Version Ibn al-Athīr al-Jazarī, al-Nihāya fī Gharīb al-Ḥadīth wa-l-Athar النهاية في غريب الحديث والأثر لأبي السعادات ابن الأثير الجزري

Majd al-Dīn ibn al-Athīr al-Jazarī (d. 1210 CE / 606 AH) is the eldest of the three Ibn al-Athīr brothers. He was a famous judge and scholar of hadith and Arabic philology in the city of Mosul. His Nihāya was meant as a dictionary of rare and unusual words, expressions and usages in hadith, the Quran and Arabic literature, though its massive size gives it a more general scope as a dictionary of the Arabic language. This dictionary is sometimes misattributed to his younger brother the historian ʿAlī ibn al-Athīr.