accumulates
ac-cu-mu-lates
verb
Increases in quantity or amount over a period of time.
"Interest accumulates on the savings account."
verb
Gathers or acquires an increasing quantity or number of something.
"The old attic accumulates dust rapidly."
Thesaurus
Synonyms: amass, accumulate, collect, hoard, pile up, roll up, compile, cumulate, conglomerate, gather