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[kuh-lab-uh-reyt] /kəˈlæb əˌreɪt/
verb (used without object), collaborated, collaborating.
to work, one with another; cooperate, as on a literary work:
They collaborated on a novel.
to cooperate, usually willingly, with an enemy nation, especially with an enemy occupying one's country:
He collaborated with the Nazis during World War II.
Origin of collaborate
1870-75; < Late Latin collabōrātus (past participle of collabōrāre), equivalent to col- col-1 + labor work + -ātus -ate1
Related forms
collaborator, noun
Can be confused
collaborate, corroborate.
2. collude, join, assist, abet. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for collaborator


verb (intransitive)
often foll by on, with, etc. to work with another or others on a joint project
to cooperate as a traitor, esp with an enemy occupying one's own country
Derived Forms
collaborative, adjective
collaborator, noun
Word Origin
C19: from Late Latin collabōrāre, from Latin com- together + labōrāre to work
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
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Word Origin and History for collaborator

1802, from French collaborateur, from Latin collaboratus, past participle of collaborare "work with," from com- "with" (see com-) + labore "to work" (see labor (v.)).



1871, back-formation from collaborator. Given a bad sense in World War II. Related: Collaborated; collaborating.

Online Etymology Dictionary, © 2010 Douglas Harper
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