Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
fóstra
→
Danish
fostre
(derived)
→
Icelandic
fóstra
(derived)
→
Icelandic
fóstra
(derived)
→
Norwegian Bokmål
fostre
(derived)
→
Norwegian Nynorsk
fostra
(derived)