The definition of accumulate means to gather together over time.(verb)
An example of accumulate would be the amount of snow on the ground building up during a winter storm.
See accumulate in Webster's New World College Dictionary
See accumulate in American Heritage Dictionary 4
verb ac·cu·mu·lat·ed, ac·cu·mu·lat·ing, ac·cu·mu·lates verb, transitive
Origin: Latin accumulāre, accumulāt-
Origin: : ad-, ad-
Origin: + cumulāre, to pile up (from cumulus, heap; see keuə- in Indo-European roots).
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