accumulated
Concise Oxford English Dictionary © 2008 Oxford University Press:
accumulate /əˈkjuːmjʊleɪt/
▶verb gather together a number or quantity of.
■ gradually increase; build up.
– derivatives
accumulation noun,
accumulative adjective.
accumulation noun,
accumulative adjective.
– origin C15: from L. accumulat-, accumulare ‘heap up’, from ad- ‘to’ + cumulus ‘a heap’.
'accumulated' also found in these Oxford entries:

