Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *h₂pó

→ Welsh o (inherited)
→ Jersey Dutch f'n (mention)
→ Latin po- (derived)
→ Dutch van (mention)
→ Old Frisian fon (derived)
→ Russian по (mention)