Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
gord
←
Gaulish
*gorton
(borrowed)
←
Welsh
garth
(cognate)
←
Irish
gort
(cognate)
←
Cornish
gorth
(cognate)