ETYM Old Eng. authour, autour, Old Fren. autor, French auteur, from Latin auctor, sometimes, but erroneously, written autor or author, from augere to increase, to produce. Related to Auction.
1. The beginner, creator, or originator of any thing.
2. The writer of a book.

ETYM AS. wrîtere.
1. A person who is able to write and has written something.
2. Writes (books or stories or articles or the like) professionally (for pay); SYN. author.