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