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