Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*ḱerh₂-s-ro
→
Catalan
cervell
(mention)
→
French
cerveau
(mention)
→
Italian
cervello
(mention)
→
Romansch
tscharvè
(mention)