Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
kunna
←
Proto-West Germanic
*kunnan
(inherited)
←
Proto-Indo-European
*ǵneh₃-
(root)
→
North Frisian
kön
(inherited)
→
North Frisian
koone
(derived)
→
West Frisian
kinne
(inherited)
→
Saterland Frisian
konne
(derived)