Here's what rhymes with lenitum.
                        
                        
                    
                                erratum  Words that almost rhyme with lenitum
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