Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
German Ger
Proto-Germanic *gaizaz (inherited)
Middle High German gēr (inherited)
Proto-West Germanic *gaiʀ (inherited)
Old High German gēr (inherited)
Proto-Indo-European *ǵʰoysós (inherited)

English gar (cognate)
English Geer (mention)
English Gehr (mention)
Finnish keihäs (cognate)