Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
vâtn
←
Proto-Germanic
*watōr
(inherited)
←
Proto-Indo-European
*wódr̥
(inherited)
←
Old Norse
vatn
(inherited)
→
Westrobothnian
vattutak
(compound)
→
Westrobothnian
vötomånn
(compound)
→
Westrobothnian
vöto
(suffix)