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