Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Luxembourgish Saach
German Sache (cognate)
English sake (cognate)
Proto-Germanic *sakō (derived)
Old High German sahha (derived)
Icelandic sök (cognate)
Dutch zaak (cognate)

Luxembourgish Haaptsaach (affix)