Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
mōta
→
North Frisian
mut
(derived)
→
North Frisian
mötj
(derived)
→
West Frisian
moatte
(inherited)