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

→ English knop (inherited)
→ German Knopf (inherited)
→ Middle English knop (inherited)
→ Westrobothnian knaapp (derived)
→ Old High German knoto (inherited)
→ Alemannic German Chnopf (inherited)
→ Hunsrik Knopp (inherited)
→ Luxembourgish Knapp (inherited)