Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bourguignon
peuvoi
←
Old French
pooir
(inherited)
←
Latin
posse
(inherited)
←
Latin
possum
(mention)
→
French
pouvoir
(cognate)