Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Germanic *kōpijaną

→ English keep (inherited)
→ Old English cepan (inherited)
→ Westrobothnian koop (inherited)
→ Icelandic kæpa (derived)
→ Old Norse kópr (mention)
→ Russian забота (cognate)
→ Serbo-Croatian zobati (cognate)