verb (used without object), co·op·er·at·ed, co·op·er·at·ing.
to work or act together or jointly for a common purpose or benefit.
to work or act with another or other persons willingly and agreeably.
to practice economic cooperation.
Origin of cooperate
Synonyms for cooperate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
to work or act together
to be of assistance or be willing to assist
economics (of firms, workers, consumers, etc) to engage in economic cooperation
Word Origin for cooperate
C17: from Late Latin cooperārī to work with, combine, from Latin operārī 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
also co-operate, c.1600, from Late Latin cooperatus, past participle of cooperari "to work together with" (see cooperation). Related: Cooperated; cooperating.
Online Etymology Dictionary, © 2010 Douglas Harper