Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
aum
←
Westrobothnian
drȯum
(mention)
←
Westrobothnian
auk
(mention)
←
Westrobothnian
rauk
(mention)
←
Old Norse
aumr
(inherited)
←
Old Norse
eyma
(inherited)