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