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

→ Breton moereb (mention)
→ Gaulish matir (inherited)
→ Welsh mam (cognate)
→ Welsh modryb (mention)
→ French Marne (mention)
→ Irish máthair (inherited)
→ Scottish Gaelic màthair (inherited)
→ Manx moir (inherited)
→ Old Irish máthir (inherited)