Meaning of AL- in English

AL-

(a ·pref.) all; wholly; completely; as, almighty, almost.

2. al- (a ·pref.) to; at; on;

— in ·of shortened to a-. ·see ad-.

3. al- (a ·pref.) the arabic definite article answering to the english the; as, alkoran, the koran or the book; alchemy, the chemistry.

Webster English vocab.      Английский словарь Webster.