Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *sm̥-h₂-ó-

→ Welsh haf (inherited)
→ Faroese summar (derived)
→ Irish samhradh (derived)
→ Manx sourey (derived)
→ Cornish hav (inherited)
→ Cornish hâv (inherited)
→ Old Irish sam (derived)
→ Old Irish samrad (derived)