Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
Cornouaille
←
Old English
-wealas
(mention)
←
Old English
wealh
(mention)
←
Proto-Brythonic
*Kernɨw
(derived)
←
Old French
Cornouaille
(inherited)