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