Here's what rhymes with prowas.
                        
                        
                    
                                Words that almost rhyme with prowas
aureus  prowess  ous  leprous  loudmouth  blouses  louses  houses  bowels  ounces  vowels  towels  pouches  dowels  crouches  trowels  vouches  howdahs  douses  mouses  grouches  outcomes  spouses  roundels  debauches  avouches  outguns  mountains  thousands  councils  counsels  fountains  mouthfuls  carousals  spousals  housefuls  disembowels  scoundrels  semivowels