Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
Namnetes
←
Gaulish
*nant
(mention)
←
Proto-Celtic
*nantos
(derived)
←
Ancient Greek
Ναμνιτῶν
(derived)