Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
pera
←
Latin
pirum
(inherited)
←
Old Occitan
pera
(inherited)
→
Catalan
perera
(suffix)
→
Catalan
perer
(suffix)