author vs Marquand

author and Marquand both are nouns.

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

author (noun)	Marquand (noun)
writes (books or stories or articles or the like) professionally (for pay)	United States writer who created the Japanese detective Mr. Moto and wrote other novels as well (1893-1960)
someone who originates or causes or initiates something

author (verb)	Marquand (verb)
be the author of