Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
clavèl
←
Catalan
clavell
(mention)
←
Latin
clavus
(inherited)
←
Old Occitan
clavel
(inherited)
←
Old Occitan
clau
(mention)
←
Old Occitan
-el
(mention)
→
Occitan
clavelar
(suffix)