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