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