Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Gaulish
viros
→
Breton
gour
(cognate)
→
French
virer
(mention)
→
Irish
fear
(cognate)
→
Middle Welsh
gwr
(cognate)