Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Norwegian Bokmål åpen
Danish åben (cognate)
German offen (cognate)
English open (cognate)
West Frisian iepen (cognate)
Proto-Germanic *upanaz (derived)
Proto-Indo-European *up (derived)
Icelandic opinn (cognate)
Low German apen (cognate)
Low German open (mention)
Dutch open (cognate)
Old Norse opinn (derived)
Swedish öppen (cognate)

English open (cognate)
Icelandic opinn (mention)
Norwegian Bokmål åpne (link)
Norwegian Bokmål åpenbar (suffix)
Norwegian Bokmål vidåpen (affix)
Norwegian Bokmål åpenhet (suffix)
Norwegian Bokmål døgnåpen (affix)