Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Danish når
Danish nær (cognate)
Danish hvornår (derived)
Proto-Germanic *nēhwōz (derived)
Proto-Germanic *nēhwiz (derived)
Old Danish nār (inherited)
Old Norse nær (inherited)
Swedish när (mention)

Danish at (link)