Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
acoster
←
Old French
a
(confix)
←
Old French
coste
(confix)
←
Old French
er
(confix)
→
French
accoter
(cognate)