Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle French
bien
←
Old French
bien
(inherited)
→
French
bien
(inherited)
→
Middle French
bienfaire
(compound)
→
Middle French
tresbien
(compound)