Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Gaulish
Suadurix
←
Gaulish
*swādus
(affix)
←
Gaulish
*rīx
(affix)
←
Proto-Celtic
*swādus
(derived)
←
Proto-Celtic
*rīxs
(mention)