Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
mariner
←
Old French
marin
(suffix)
←
Old French
er
(suffix)
→
French
marinier
(inherited)
→
Irish
mairnéalach
(derived)