Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
West Frisian
ûnder
←
Proto-Germanic
*under
(inherited)
←
Old Frisian
under
(inherited)
→
West Frisian
ûnderseeboat
(compound)
→
West Frisian
ûnderkin
(compound)
→
West Frisian
ûnderdûke
(compound)