Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
clawdd
←
Proto-Celtic
*klādos
(inherited)
←
Proto-Indo-European
*kleh₂d-
(inherited)
→
Welsh
mwynglawdd
(affix)