Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
-er
←
Latin
-āre
(inherited)
←
Latin
-ārius
(inherited)
→
English
-er
(mention)
→
English
-er
(derived)
→
English
treasurer
(mention)
→
English
fret
(derived)
→
English
crenellate
(mention)
→
English
victual
(mention)
→
English
dismember
(mention)
→
English
crenellation
(mention)
→
Afrikaans
-eer
(derived)
→
French
-ier
(mention)
→
French
essayer
(mention)
→
French
ciseler
(mention)
→
French
cuirassier
(mention)
→
French
riboter
(affix)
→
Middle French
-er
(mention)
→
Old French
colper
(suffix)
→
Old French
espeler
(mention)
→
Dutch
-eren
(derived)
→
Portuguese
desmanchar
(mention)