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[v. kyoo-myuh-leyt; adj. kyoo-myuh-lit, -leyt] /v. ˈkyu myəˌleɪt; adj. ˈkyu myə lɪt, -ˌleɪt/
verb (used with object), cumulated, cumulating.
to heap up; amass; accumulate.
heaped up.
Origin of cumulate
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
Related forms
cumulately, adverb
decumulate, verb (used with object), decumulated, decumulating. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for cumulate
Historical Examples
  • Oh, it was in the agreement that the intrest should stay and cumulate, he called it.

    Fighting the Sea Edward A. Rand
  • When electors are allowed to cumulate on individual candidates, the favourites of sections within the party will be elected.

    Proportional Representation Applied To Party Government T. R. Ashworth and H. P. C. Ashworth
  • Sir Charles labored only to heap up the evidences of evolution; to cumulate them till the mass became irresistible.

  • When Ah starts makin' up de berths you kin sweep out de cah an' 'cumulate de sheets an' pillow cases.

    Lady Luck Hugh Wiley
British Dictionary definitions for cumulate


verb (ˈkjuːmjʊˌleɪt)
to accumulate
(transitive) to combine (two or more sequences) into one
adjective (ˈkjuːmjʊlɪt; -ˌleɪt)
heaped up
Derived Forms
cumulately, adverb
cumulation, noun
Word Origin
C16: from Latin cumulāre from cumulus heap
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 cumulate

1530s, from Latin cumulatus "heaped, increased, augmented," past participle of cumulare "to heap," from cumulus "mound, heap" (see cumulus). Related: Cumulated; cumulating.

Online Etymology Dictionary, © 2010 Douglas Harper
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