Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
reykja
→
Danish
røge
(derived)
→
Icelandic
Reykjavík
(mention)
→
Icelandic
reykja
(derived)
→
Norwegian Bokmål
røyke
(derived)
→
Norwegian Nynorsk
røykja
(derived)
→
Norwegian Nynorsk
røyke
(derived)