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