Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*barros
→
French
berge
(derived)
→
Irish
barr
(inherited)
→
Scottish Gaelic
bàrr
(inherited)
→
Galician
barra
(derived)
→
Middle Welsh
barr
(inherited)