Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
bres
←
Gaulish
*berta
(derived)
←
French
berceau
(cognate)
←
Latin
*bertium
(mention)
←
Old Irish
bert
(cognate)