Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Low German
rekenen
→
Danish
regne
(borrowed)
→
Icelandic
reikna
(cognate)
→
Norwegian Bokmål
regne
(derived)
→
Swedish
räkna
(cognate)