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