Here's what rhymes with frath.
                        
                        
                    
                                Words that almost rhyme with frath
of  us  love  rough  rush  flush  lush  slough  thrush  slush  fluff  ruff  luff  luv  does  thus  plus  bus  stuff  thereof  brush  tough  crush  dove  pus  bluff  blush  buff  cuff  fuss  glove  hush  puff  snuff  truss  buzz  hereof  plush  shove  gruff  gush  mus  mush  muss  breve  cuss  fuzz  huff  muff  nus  duff  fewness  scruff  buss  above  enough  whereof  schemas  twas  beauteous  rebuff  discuss  hairbrush  superfluous  underbrush  mellifluous  minibus  month