Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
eign
←
Danish
egn
(cognate)
←
Faroese
ogn
(cognate)
←
Old Norse
eign
(inherited)
→
Icelandic
eignarfall
(mention)
→
Icelandic
eignarfornafn
(mention)
→
Icelandic
skyldueign
(mention)