Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
douiller
←
French
deuil
(suffix)
←
French
er
(suffix)
←
French
douille
(suffix)
←
French
er
(suffix)
←
Old French
dueillier
(inherited)
←
Old French
doillier
(mention)
←
Old French
duel
(mention)