Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
German irre
Old High German irri (inherited)

Old English ierre (cognate)
German Irre (mention)
German irren (link)
German irreführen (affix)
German Irrer (mention)
German irrig (suffix)
German irremachen (compound)
German irregehen (compound)