Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
Aunios
←
Proto-Celtic
(derived)
←
Proto-Indo-European
*h₂epó
(derived)
→
Galician
Ons
(mention)
→
Latin
Aunes
(mention)