Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
plen
←
Catalan
ple
(cognate)
←
French
plein
(cognate)
←
Italian
pieno
(cognate)
←
Latin
plēnus
(inherited)
←
Old Occitan
ple
(mention)
→
Occitan
emplenar
(affix)
→
Occitan
plenament
(affix)