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