Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
mercer
←
Old French
mercer
(mention)
←
Old French
merz
(mention)
←
Latin
merx
(derived)
→
English
mercership
(suffix)