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