Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
aberth
←
Proto-Brythonic
*aberθ
(inherited)
←
Proto-Celtic
*adbertā
(inherited)
→
Welsh
aberthau
(affix)
→
Welsh
aberthged
(compound)
→
Welsh
aberthu
(suffix)