Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
esperoner
←
Old French
esperon
(suffix)
←
Old French
er
(suffix)
→
French
éperonner
(mention)
→
Middle French
esperonner
(inherited)