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