Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
West Frisian
op
←
Old Frisian
uppa
(inherited)
→
West Frisian
opromje
(compound)
→
West Frisian
oprjocht
(prefix)
→
Saterland Frisian
ap
(cognate)