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