Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
gwahân
←
Proto-Celtic
*uɸo-
(inherited)
←
Welsh
cel-pro
(mention)
←
Proto-Germanic
*sundraz
(cognate)
←
Proto-Indo-European
*senH-
(inherited)
→
Welsh
gwahanol
(affix)
→
Welsh
gwahanu
(affix)