Here's what rhymes with concupy.
by die buy tie bi bye dye pi pie thai dei ty tai my high why apply dry lie thy try y guy occupy vi hi shy sigh chi fi hy nigh spy thigh vie ly ply psi quae rye wir alibi awry hai lye mai muy nai pry tri trie wry cy fy kai lai luy mei pri sy thei untie wai phi sty amebae stye lanai supply cry fly reply sky deny nearby rely defy fry goodbye sly nullify belie lullaby pupae amoebae mollify aquae retry spry turfy ripply overbuy slier yuppify thereby imply whereby clarify comply hereby modify multiply nuclei qualify alkali classify verify glorify gratify notify underlie amplify magnify ratify unify decry terrify codify crucify edify overlie ramify resupply bonsai deify ossify triply calcify horrify misapply scarify mummify banzais justify signify simplify butterfly certify purify alveoli pacify rectify beautify falsify termini typify descry dignify liquefy mortify vilify acidify firefly mystify preoccupy ultrahigh blowfly emulsify petrify reunify stupefy liquify overfly scurfy versify barfly prettify shanghai vitrify drachmai syllabify satisfy stimuli specify testify exemplify quantify fortify samurai standby solidify objectify oversupply personify electrify stratify stultify vivify cumuli declassify beatify gentrify refortify speechify dandify identify intensify diversify disqualify indemnify demystify detoxify dragonfly reclassify revivify hyperbolae transmogrify solemnify oversimplify dissatisfy misidentify