Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norman
êputher
←
French
épurer
(cognate)
←
Norman
ê
(confix)
←
Norman
pur
(confix)
←
Norman
er
(confix)