Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle French
descourager
←
Middle French
des
(confix)
←
Middle French
courage
(confix)
←
Middle French
er
(confix)
→
English
discourage
(derived)
→
French
décourager
(mention)