Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
abeurar
←
Latin
bibere
(derived)
←
Occitan
a
(confix)
←
Occitan
beure
(confix)
←
Occitan
ar
(confix)