Multiple choice general knowledge Open up a deposit account with your bank and let the interest ___________. accummulate acummulate acumulate accumulate Reveal answer Fill a bubble to check yourself D Correct answer Explanation The correct spelling is 'accumulate' with double 'c' and single 'm'. The root is 'ad-' (becoming 'ac-') plus 'cumulare', leading to 'accumulate'. Common misspellings incorrectly double the 'm' or use single 'c'.