Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian
Øystein
←
Old Norse
Eysteinn
(inherited)
←
Old Norse
ey
(mention)
←
Old Norse
steinn
(mention)
←
Swedish
Östen
(cognate)
→
Swedish
Östen
(cognate)