accumulate
verb
°To heap up in a mass; to pile up; to collect or bring together; to amass.
"He wishes to accumulate a sum of money."
°To grow or increase in quantity or number; to increase greatly.
"Ill fares the land, to hastening ills a prey, Where wealth accumulates, and men decay. - Oliver Goldsmith"
adjective
°Collected; accumulated.
synonyms: collect, pile up, store, amass more» , gather, aggregate, heap, hoard