Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
camus
←
Proto-Celtic
*kambos
(derived)
←
Middle French
camus
(inherited)
←
Old French
camus
(inherited)
→
French
camard
(mention)