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