Here's what rhymes with dfei.
                        
                        
                    
                                high  i  eye  thy  vi  ai  hi  shy  sigh  fi  hy  thigh  vie  ei  psi  aye  hai  cy  fy  iy  sy  thei  phi  by  my  why  die  dry  lie  try  y  buy  fly  sky  guy  tie  bi  bye  chi  defy  dye  nigh  pi  pie  spy  thai  dei  fry  ly  ply  quae  rye  sly  ty  wir  awry  lye  mai  muy  nai  pry  tri  trie  wry  kai  lai  luy  mei  pri  tai  wai  sty  stye  turfy  slier  apply  cry  deny  belie  edify  bonsai  deify  spry  banzais  supply  reply  thereby  imply  rely  hereby  modify  certify  goodbye  notify  pacify  ratify  decry  pupae  terrify  typify  untie  codify  descry  overlie  aquae  ossify  retry  amebae  blowfly  stupefy  lanai  scurfy  barfly  shanghai  ripply  overbuy  yuppify  justify  nearby  satisfy  whereby  comply  specify  testify  verify  butterfly  gratify  purify  underlie  alibi  amplify  fortify  nullify  rectify  samurai  unify  beautify  termini  amoebae  dignify  mollify  mortify  ramify  vilify  acidify  firefly  mystify  triply  ultrahigh  vivify  horrify  petrify  overfly  versify  mummify  prettify  vitrify  beatify  drachmai  speechify  dandify  identify  occupy  clarify  nuclei  qualify  alkali  classify  signify  simplify  glorify  quantify  alveoli  diversify  magnify  standby  falsify  lullaby  solidify  crucify  liquefy  personify  resupply  stratify  stultify  calcify  misapply  reunify  liquify  scarify  gentrify  refortify  syllabify  stimuli  multiply  intensify  indemnify  objectify  oversupply  demystify  detoxify  dragonfly  electrify  emulsify  revivify  dissatisfy  declassify  hyperbolae  exemplify  disqualify  preoccupy  reclassify  cumuli  solemnify  oversimplify  misidentify  transmogrify