Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
skyll
←
Proto-Germanic
*skuldiz
(inherited)
←
Old Norse
skyldr
(inherited)
→
Westrobothnian
osjilld
(prefix)
→
Westrobothnian
nerskylt
(compound)