Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*gaba
→
Catalan
galta
(derived)
→
Catalan
gavatx
(mention)
→
French
joue
(derived)
→
Occitan
gauta
(derived)