Here's what rhymes with eternitye.
by die buy tie bi bye dye pi pie thai dei ty tai my high why apply dry lie thy try y guy 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 supply cry fly sky deny nearby occupy defy fry sly underlie pacify standby belie lullaby termini amoebae ramify aquae ossify spry turfy lanai mummify banzais overbuy slier dandify reply thereby imply justify rely whereby comply hereby modify alkali butterfly certify goodbye notify amplify magnify nullify ratify samurai unify decry pupae terrify typify dignify edify mollify overlie personify bonsai deify retry misapply versify barfly shanghai beatify ripply yuppify identify satisfy stimuli multiply nuclei qualify specify classify signify testify verify gratify intensify purify diversify indemnify codify descry mortify oversupply resupply acidify detoxify firefly mystify preoccupy stratify stultify triply ultrahigh blowfly calcify emulsify horrify petrify reunify stupefy overfly scurfy hyperbolae prettify vitrify drachmai speechify clarify simplify glorify quantify alveoli fortify rectify beautify falsify solidify crucify liquefy vilify demystify dragonfly vivify dissatisfy liquify scarify declassify gentrify syllabify exemplify disqualify objectify electrify revivify cumuli misidentify refortify solemnify reclassify oversimplify transmogrify