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

→ Gaulish bena (inherited)
→ Welsh benyw (cognate)
→ Irish bean (inherited)
→ Scottish Gaelic bean (inherited)
→ Manx ben (inherited)
→ Cornish benyn (inherited)
→ Old Irish ben (inherited)