Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Occitan
fol
←
Old French
fol
(cognate)
←
Latin
follis
(inherited)
→
Catalan
foll
(derived)
→
Galician
fol
(derived)
→
Occitan
hòu
(inherited)