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