Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
Eysteinn
→
Faroese
Oystein
(inherited)
→
Scottish Gaelic
Ùisdean
(derived)
→
Norwegian
Øystein
(inherited)
→
Swedish
Östen
(inherited)