Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle French
contre
←
Old French
contre
(inherited)
→
French
contre
(inherited)
→
Middle French
contrepoiser
(prefix)
→
Middle French
contrevengier
(prefix)
→
Middle French
contregarder
(prefix)