Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Icelandic gera
Proto-Germanic *garwijaną (inherited)
Old Norse gera (inherited)
Old Norse gøra (mention)
Old Norse gørva (mention)

Icelandic germynd (affix)
Icelandic gerðu svo vel (mention)
Icelandic gerandi (affix)
Icelandic gera áttavilltan (mention)
Icelandic gjörð (mention)