cumulation

a mass or quantity that has piled up or that has been gathered over a period of time the cumulation of grime on the stove was really disgusting Synonyms accretion, assemblage, collection, accumulation, cumulus, gathering, lodgment (or lodgement), pileupRelated Words agglomerate, assortment, congeries, conglomerate, conglomeration, hodgepodge, hotchpotch, jumble, medley, mélange, mishmash, mix, mixture, motley, potpourri; agglomeration, clutter, hash, heap, litter, mass, pile; aggregate, aggregation, sum, totality; backlog, cache, fund, hoard, inventory, kitty, nest egg, reserve, stock, stockpile, store, supply