Here's what rhymes with envain.
                        
                        
                    
                                vain  vein  sane  fain  vane  feign  thane  main  gain  pain  chain  rain  reign  ln  cane  insane  slain  stain  lane  lain  pane  rein  bane  mane  tain  wane  deign  moraine  skein  swain  arraign  wain  murrain  brain  grain  plain  plane  strain  train  attain  drain  terrain  crane  twain  certaine  inane  urbane  sprain  chicane  contain  maintain  obtain  remain  campaign  domain  retain  sustain  ascertain  entertain  refrain  champagne  cocaine  disdain  humane  profane  regain  abstain  detain  hurricane  mundane  pertain  ordain  arcane  cellophane  germane  humaine  overlain  romaine  urethane  ingrain  explain  complain  restrain  aeroplane  constrain  sugarcane  butane  halothane  inhumane  appertain  retrain  windowpane  wholegrain  reattain  monoplane  coxswain  reexplain  legerdemain  hydroplane  foreordain  preordain  polyurethane  demimondaine  Words that almost rhyme with envain
same  fame  shame  came  name  game  frame  flame  lame  tame  dame  maim  claim  blame  inflame  aflame  defame  became  overcame  acclaim  rename  selfsame  forename  exclaim  reclaim  filename  disclaim  declaim  aspartame  ballgame  proclaim  quitclaim  counterclaim