Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
toco
←
Spanish
tocón
(cognate)
←
Proto-Indo-European
*tewh₂-
(derived)
→
Galician
coto
(link)