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