Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norman
doux
←
Old French
dous
(inherited)
←
Latin
dulcem
(inherited)
←
Latin
dulcis
(mention)
→
Norman
douochement
(suffix)