Here's what rhymes with certayntie.
                        
                        
                    
                                dainty  Words that almost rhyme with certayntie
mangy  rangy  tasty  pasty  daily  baby  mainly  safety  plainly  faintly  hasty  rainy  saintly  seine  vainly  weighty  pastry  basely  daisy  bailey  brainy  chastely  platy  sanely  zany  paisley  palely  matey  saintlier  pacey  lady  lately  maybe  safely  navy  lazy  stately  vaguely  bravely  facie  gaily  hazy  shady  shaky  wavy  frailty  gayly  quaintly  racy  shapely  grainy  lacy  precis  sagely  savoury  sedately  stably  tamely  wadi  chaplaincy  cagey  dazedly  stagey  strati  inanely  opaquely  overhasty  spacey  stagy  cagy  staidly  rubati  greatly  namely  crazy  strangely  gravely  gravy  clayey  innately  ungainly  flaky  humanely  insanely  lamely  scrapie  gamely  profanely  snaky  chickadee  straightly  averagely  irately  mundanely  charlady  chocolaty  frailly  majorly  quaky  staccati  miscellany  regale  unsavoury  ornately  milady  crybaby  unshapely  archaically  unsafely  unstably  pizzicati  obbligati  hippopotami  desolately  inhumanely  concavely  magistracy  intestacy  shamefacedly  ukulele  saleslady  cockamamie  barefacedly  profligately  disconsolately  recognisably