Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
Doubs
←
Breton
du
(cognate)
←
Gaulish
Dubis
(derived)
←
Latin
Dūbis
(cognate)
→
English
Doubs
(borrowed)