Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
ghanza
←
Breton
kerc'heiz
(mention)
←
Welsh
crychydd
(mention)
←
Undetermined
*cárcia
(mention)