Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
fiskj
←
Westrobothnian
fisk
(mention)
←
Old Norse
fiskja
(inherited)
←
Old Norse
fiska
(mention)
←
Old Norse
fiskr
(mention)
→
Westrobothnian
fiskjälä
(suffix)