Al-

Webster's Dictionary of the English Language

(A ·pref.) All; wholly; completely; as, almighty, almost.

II. Al- (A ·pref.) To; at; on;

— in ·OF shortened to a-. ·see Ad-.

III. Al- (A ·pref.) The Arabic definite article answering to the English the; as, Alkoran, the Koran or the Book; alchemy, the chemistry.