Here's what rhymes with essentail.
                        
                        
                    
                                pale  tail  tale  jail  entail  bail  bale  dale  pail  male  fail  mail  sale  sail  trail  nail  rail  veil  gale  hail  shale  whale  stale  vale  wail  hale  braille  kale  impale  faille  wale  detail  scale  avail  frail  email  assail  curtail  inhale  quail  snail  flail  quale  bewail  derail  unveil  grail  hightail  prevail  travail  exhale  fingernail  gunwale  mainsail  pigtail  ponytail  topsail  foresail  monorail  taffrail  bobtail  wassail  pellmell  hangnail  carrell  countervail  martingale  nonpareil  swallowtail  lugsail  tattletale