معجم العين

The book: The Book of the eye

Author: Abu Abdul-Rahman Khalil bin Ahmed bin Amr bin Tamim Faraaheedi Basri (d. 170 AH)

Lexicon eye is the first dictionary of the coordinator of the Arabic language, was written by Khalil bin Ahmed Faraaheedi and accomplished and rank Layth ibn Muzaffar Laithi Kanani is based on its ranking on the exits of the letters from the deepest point in the throat through the movements of the tongue and even parties to the lips, and thus be the first letters is the eye and the last of which is Almim, and then follow them vowels groundwater (and, j, a).