Cervantes vs author

Cervantes and author both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cervantes	Yes	No	No	No
author	Yes	No	Yes	No

Cervantes (noun)	author (noun)
Spanish writer best remembered for `Don Quixote' which satirizes chivalry and influenced the development of the novel form (1547-1616)	writes (books or stories or articles or the like) professionally (for pay)
	someone who originates or causes or initiates something

Cervantes (verb)	author (verb)
	be the author of