[ 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.
Origin of cumulate
Related formscu·mu·late·ly, adverbde·cu·mu·late, verb (used with object), de·cu·mu·lat·ed, de·cu·mu·lat·ing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for decumulate
(tr) to combine (two or more sequences) into one
adjective (ˈkjuːmjʊlɪt, -ˌleɪt)
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
Word Origin and History for decumulate
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