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