Al-Mufradat fi Gharib al-Quran

Al-Mufradat fi Gharib al-Quran (Arabic: المفردات في غريب القرآن‎‎) is a dictionary of Qur'anic terms by Islamic scholar Al-Raghib al-Isfahani.

It is widely considered by Shia Muslims to hold the first place among works of Arabic lexicography in regard to the Qur'an.

...
Wikipedia