Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Epona
←
Gaulish
epos
(derived)
←
Proto-Celtic
*ekʷos
(derived)
←
Proto-Indo-European
*h₁éḱwos
(derived)