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