Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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German Irrtum
German irren (suffix)
German tum (suffix)
Middle High German irretuom (inherited)
Old High German irrituom (inherited)

German irren (link)
German irrtümlich (suffix)
German Justizirrtum (affix)
German Verbotsirrtum (compound)