co-operator

cooperate

[koh-op-uh-reyt]
verb (used without object), cooperated, cooperating.
1.
to work or act together or jointly for a common purpose or benefit.
2.
to work or act with another or other persons willingly and agreeably.
3.
to practice economic cooperation.
Also, co-operate.


Origin:
1595–1605; < Late Latin cooperātus past participle of cooperārī to work with. See co-, operate

cooperator, co-operator, noun
uncooperating, adjective


2. collaborate, join, participate.
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World English Dictionary
cooperate or co-operate (kəʊˈɒpəˌreɪt)
 
vb
1.  to work or act together
2.  to be of assistance or be willing to assist
3.  economics (of firms, workers, consumers, etc) to engage in economic cooperation
 
[C17: from Late Latin cooperārī to work with, combine, from Latin operārī to work]
 
co-operate or co-operate
 
vb
 
[C17: from Late Latin cooperārī to work with, combine, from Latin operārī to work]
 
co'operator or co-operate
 
n
 
co-'operator or co-operate
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

cooperate
1610s, from L. cooperat-, pp. stem of cooperari (see cooperation). Related: Cooperating (1640s).
Online Etymology Dictionary, © 2010 Douglas Harper
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