Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
-or
←
English
-er
(link)
←
English
-ness
(link)
←
Old French
-eor
(alter)
←
Old French
-eour
(alter)
←
Old French
-eur
(alter)
←
Old French
-our
(alter)
←
Old French
(alter)
←
Old French
late Anglo-Norman
(alter)
←
Old French
-ur
(alter)
←
Old French
(alter)
←
Old French
early Anglo-Norman
(alter)
←
Old French
-eur
(alter)
←
Old French
-our
(alter)
←
Old French
(alter)
←
Old French
late Anglo-Norman
(alter)
←
Old French
-ur
(alter)
←
Old French
(alter)
←
Old French
early Anglo-Norman
(alter)
←
Latin
-tor
(inherited)
←
Latin
-or
(inherited)
→
English
-er
(derived)
→
Middle English
-our
(cognate)
→
French
-eur
(mention)
→
Middle French
-eur
(mention)
→
Old French
iror
(mention)
→
Dutch
-eur
(mention)
→
Norman
-eux
(mention)