Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
clef
←
Latin
clāvis
(inherited)
→
French
clé
(inherited)
→
Middle French
clef
(inherited)
→
Norman
clié
(inherited)
→
Gallo
tié
(inherited)