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