Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old Frisian fiūwer

→ North Frisian fjauer (derived)
→ North Frisian fjouer (derived)
→ North Frisian schtjuur (derived)
→ North Frisian fjuur (derived)
→ West Frisian fjouwer (inherited)
→ Saterland Frisian fjauer (inherited)