Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
eig
←
Proto-Germanic
*aiganą
(inherited)
←
Westrobothnian
åg
(link)
←
Old Norse
eiga
(inherited)
→
Westrobothnian
åg
(link)
→
Westrobothnian
åg
(link)