Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
peri
←
Proto-Celtic
*kʷert
(inherited)
←
Proto-Indo-European
*kʷer-
(inherited)
→
Welsh
darparu
(prefix)
→
Welsh
peiriant
(affix)