Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
rexelo
←
Proto-Celtic
*riskillos
(derived)
←
Proto-Indo-European
*preysk-
(derived)
←
Latin
res
(mention)
→
Galician
res
(link)