Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Occitan
poder
←
Old French
poeir
(cognate)
←
Latin
potens
(mention)
←
Latin
possum
(inherited)
→
Catalan
poder
(inherited)
→
Occitan
poder
(inherited)