Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Danish gen-
Danish igen (mention)
Norwegian Bokmål gjen- (cognate)
Old Norse gegn (mention)

Danish gentage (prefix)
Danish gavn (cognate)
Danish gensyn (prefix)
Danish genfødsel (prefix)
Danish genvælge (prefix)
Danish genudsende (prefix)
Danish genvalg (affix)
Danish gengæld (affix)
Norwegian Bokmål gjen- (cognate)
Swedish gen- (cognate)