Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Norwegian Nynorsk virke
Proto-Indo-European *werǵ- (root)
Norwegian Bokmål virke (cognate)
Norwegian Nynorsk vyrke (doublet)
Old Norse virki (inherited)

Norwegian Nynorsk verk (link)
Norwegian Nynorsk samvirke (prefix)
Norwegian Nynorsk vyrke (doublet)