Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
échange
←
Old French
eschange
(mention)
←
Old French
eschanger
(mention)
→
English
exchange
(cognate)
→
French
échangisme
(suffix)
→
French
échangiste
(suffix)