Here's what rhymes with aptandum.
                        
                        
                    
                                tandem  random  memorandum  nonrandom  Words that almost rhyme with aptandum
tantum  bantam  abandon  phantom  canton  dampen  plantain  zooplankton  phytoplankton  handsome  datum  madam  ransom  madame  tantrum  hansom  transom  talcum  pablum  maxim  platinum  chasm  fathom  spasm  magnum  plasm  sachem  stratum  amalgam  macadam  phantasm  gladsome  sphagnum  substratum  sanctum  cytoplasm  neoplasm  tarmacadam  protoplasm  enthusiasm  iconoclasm