[ verb kyoo-myuh-leyt; adjective kyoo-myuh-lit, -leyt ]
/ verb ˈkyu myəˌleɪt; adjective ˈkyu myə lɪt, -ˌleɪt /

verb (used with object), cu·mu·lat·ed, cu·mu·lat·ing.

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 formscu·mu·late·ly, adverbde·cu·mu·late, verb (used with object), de·cu·mu·lat·ed, de·cu·mu·lat·ing. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cumulate

  • Sir Charles labored only to heap up the evidences of evolution; to cumulate them till the mass became irresistible.

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

    Lady Luck|Hugh Wiley
  • Oh, it was in the agreement that the intrest should stay and cumulate, he called it.

    Fighting the Sea|Edward A. Rand

British Dictionary definitions for cumulate


verb (ˈkjuːmjʊˌleɪt)

to accumulate
(tr) to combine (two or more sequences) into one

adjective (ˈkjuːmjʊlɪt, -ˌleɪt)

heaped up
Derived Formscumulately, adverbcumulation, noun

Word Origin for cumulate

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