Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
nykr
→
Old English
nicor
(cognate)
→
Faroese
nykur
(derived)
→
Icelandic
nykur
(derived)
→
Norwegian Bokmål
nøkk
(inherited)
→
Norwegian Nynorsk
nykk
(inherited)
→
Swedish
Näcken
(derived)