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