Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
paire
←
Latin
pater
(inherited)
←
Occitan
pairal
(link)
←
Old Occitan
paire
(inherited)
→
Catalan
pairal
(mention)
→
Occitan
pairin
(mention)