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