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