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