Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
cloïssa
←
Latin
clausus
(derived)
←
Old Occitan
clauvisso
(derived)
←
Old Occitan
claus
(mention)