COAUTHOR

coauthor, joint author

(noun) a writer who collaborates with others in writing something

Source: WordNet® 3.1

Etymology

Noun

coauthor (plural coauthors)

An author who collaborates with another to write something.

Verb

coauthor (third-person singular simple present coauthors, present participle coauthoring, simple past and past participle coauthored)

To write something in collaboration with another author.

Source: Wiktionary