Here's what rhymes with volitum.
erratum Words that almost rhyme with volitum
button mutton glutton piton sudden globin bludgeon dudgeon nubbin dubbin exciton unbutton scutcheon androgen escutcheon bellybutton custom caecum accustom cementum buxom buncombe bunkum dumdum secundum humdrum jejunum colostrum corundum conundrum carborundum