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