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

→ Breton glin (mention)
→ Welsh glin (mention)
→ Irish glúin (inherited)
→ Scottish Gaelic glùn (inherited)
→ Manx glioon (inherited)
→ Cornish glin (mention)