Here's what rhymes with ephemerae.
re lay ray yea allay ley rei lei rea roue they may day way away say pay play j array bay clay gay gray grey k pray che hay nay prey weigh ballet tray fay fe fray slay valet dey fillet hey sei sleigh whey drei emigre jay kc payee rj tae tre wei bey bray dray flay neigh brae cay fey shay trey aurae hurray aweigh stay today delay survey anyway decay essay obey okay spray cafe interplay repay stray sway astray oj ij ok overlay passe bj bk fj tj underlay zwei fistulae parquet soiree belay fibulae filet splay airplay moray nisei purvey sachet stingray hooray noway reweigh spay umbrae convey holiday betray formulae runaway underway vertebrae attache bouquet cliche defray disobey faraway lamellae papillae sequelae dossier naturae nebulae puree replay saute alleyway crochet croquet getaway maxillae risque souffle giveaway hideaway inveigh ricochet throwaway byplay patellae prepay resurvey sorbet soubriquet stowaway toupee underplay flyaway overpay overplay sickbay urethrae briquet layaway medullae outplay underpay copay misplay tearaway respray display everyday yesterday dismay halfway portray disarray naivete waterway cabaret francais gangway matinee microarray lingerie scapulae sobriquet wordplay workaday caraway pleurae salmonellae macrame overstay roundelay caesurae outstay uvulae bobsleigh copulae foldaway penumbrae passageway protege societe toothache breakaway straightaway carriageway castaway takeaway cybercafe walkaway communique cabriolet caravanserais tarantulae trabeculae companionway