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