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