Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle French
sceur
←
Middle French
(mention)
←
Old French
seür
(inherited)
←
Latin
securus
(inherited)
→
French
sûr
(inherited)