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

→ Cimbrian Biin (derived)
→ Welsh bôn (inherited)
→ Irish bun (inherited)
→ Scottish Gaelic bun (inherited)
→ Latin Bononia (derived)
→ Old Irish bun (inherited)