Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
athref
←
Proto-Brythonic
*aθreβ
(inherited)
←
Proto-Celtic
*attrebā
(inherited)
←
Welsh
a-
(affix)
←
Welsh
tref
(affix)
→
Welsh
ethrefig
(affix)