Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
prigond
←
Catalan
pregon
(cognate)
←
Latin
profundus
(inherited)
→
Catalan
profund
(cognate)
→
Occitan
aprigondir
(confix)
→
Occitan
prigondor
(link)