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