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