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