Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
dure
→
West Frisian
doar
(inherited)
→
Old Frisian
boes-doer
(compound)
→
Saterland Frisian
Doore
(mention)