Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Walloon
côper
←
Old French
coper
(inherited)
←
Old French
colper
(mention)
←
Old French
cop
(mention)
←
Old French
colp
(mention)
←
Latin
colaphus
(derived)