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

→ Welsh cam (mention)
→ Welsh caseg (cognate)
→ Irish céim (derived)
→ Galician camiño (derived)
→ Manx keim (mention)
→ Latin camminus (derived)
→ Old Irish cingid (inherited)
→ Old Irish céimm (mention)