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cumulation

[kyoo-myuh-ley-shuh n] /ˌkyu myəˈleɪ ʃən/
noun
1.
the act of cumulating; accumulation.
2.
a heap; mass.
Origin
1610-1620
1610-20; cumulate + -ion
Related forms
decumulation, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Word Origin and History for de-cumulation

cumulation

n.

1610s, noun of action from cumulate.

Online Etymology Dictionary, © 2010 Douglas Harper
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3
3
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