Accumulate
来自Big Physics
late 15th century: from Latin accumulat- ‘heaped up’, from the verb accumulare, from ad- ‘to’ + cumulus ‘a heap’.
wiktionary
Borrowed from Latin accumulātus, perfect passive participle of accumulō(“amass, pile up”), formed from ad(“to, towards, at”) + cumulō(“heap”), from cumulus(“a heap”). First attested in the 1520's.
etymonline
accumulate (v.)
1520s, "to heap up" (transitive), from Latin accumulatus, past participle of accumulare "to heap up, amass," from ad "to," here perhaps emphatic (see ad-), + cumulare "heap up," from cumulus "heap" (from suffixed form of PIE root *keue- "to swell"). From 1759 in intransitive sense of "grow in size or number." Related: Accumulated; accumulating.
