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