Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English archduke
English arch (prefix)
English duke (prefix)
French archiduc (cognate)
Middle French archeduc (derived)
Latin archidux (derived)

English archduchess (affix)
English archducal (mention)
English archdukedom (suffix)