coauthor

[koh-aw-ther, koh-aw-]

noun

one of two or more joint authors.

verb (used with object)

to write in joint authorship.

Origin of coauthor

First recorded in 1860–65; co- + author

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for coauthor

Contemporary Examples of coauthor

My job as her coauthor, and more importantly, as her mother, is to let her be herself.
How I Write: Lisa Scottoline and Daughter Francesca Serritella
Noah Charney
November 14, 2012
Orozco is also the coauthor, with Evangelina Hernández, of From Heaven to Hell in a Day (Del Cielo al Infierno en un Día).
2012 Summit: Who's On Stage
March 6, 2012
But pull it off he did (with the help of coauthor Benjamin Whitmer).
This Week’s Hot Reads: January 13, 2011
Lizzie Crocker, Malcolm Jones
January 13, 2012
She is the coauthor of the 2002 book The Mind and the Brain and the author of the 2007 book Train Your Mind, Change Your Brain.
Are Cellphones Really a Cancer Risk?
Sharon Begley
June 1, 2011
She is the coauthor of Sarah From Alaska: The Sudden Rise and Brutal Education of a New Conservative Superstar.
Palin Film Suggests She'll Run
Shushannah Walshe
May 26, 2011

British Dictionary definitions for coauthor

coauthor

noun

a person who shares the writing of a book, article, etc, with another

verb

(tr) to be the joint author of (a book, article, etc)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for coauthor

also co-author, from co- + author. From 1948 as a verb. Related: Coauthored; coauthoring.