Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
gjer
←
Westrobothnian
geru
(link)
←
Norwegian
gjer
(cognate)
←
Old Norse
*gjarr
(inherited)
←
Old Norse
gjarn
(mention)
←
Old Norse
gerr
(cognate)
→
Westrobothnian
geru
(mention)