de-cumulate

cumulate

[v. kyoo-myuh-leyt; adj. kyoo-myuh-lit, -leyt]
verb (used with object), cumulated, cumulating.
1.
to heap up; amass; accumulate.
adjective
2.
heaped up.

Origin:
1525–35; < Latin cumulātus (past participle of cumulāre to heap up, pile up, accumulate), equivalent to cumul(us) a heap, pile, mass, cumulus + -ātus -ate1

cumulately, adverb
decumulate, verb (used with object), decumulated, decumulating.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
cumulate
 
vb
1.  to accumulate
2.  (tr) to combine (two or more sequences) into one
 
adj
3.  heaped up
 
[C16: from Latin cumulāre from cumulus heap]
 
'cumulately
 
adv
 
cumu'lation
 
n

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

cumulate
1530s, from L. cumulat-, pp. stem of cumulare "to heap," from cumulus "mound, heap" (see cumulus).
Online Etymology Dictionary, © 2010 Douglas Harper
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