Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old Norse lykill
← Proto-Germanic *lukilaz (inherited)
← Old Norse lúka (suffix)
← Old Norse -ill (suffix)

→ Danish nøgle (inherited)
→ Faroese lykil (inherited)
→ Icelandic lykill (inherited)
→ Norwegian Nynorsk lykel (inherited)
→ Swedish nyckel (derived)