Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
Pétr
→
Danish
Peter
(inherited)
→
Faroese
Petur
(derived)
→
Faroese
Pætur
(derived)
→
Norwegian
Peter
(derived)
→
Swedish
Peter
(inherited)