Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
German eitel
English idle (cognate)
Proto-Germanic *īdalaz (derived)
Middle High German ītel (derived)
Old High German ītal (derived)
Luxembourgish eidel (cognate)
Dutch ijdel (cognate)

English idle (cognate)
German Eitelkeit (affix)
German uneitel (prefix)
Luxembourgish eidel (cognate)
Dutch ijdel (cognate)