Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cyfair
←
Proto-Brythonic
*kom-
(mention)
←
Proto-Celtic
*ɸare
(mention)
→
Welsh
cyfeiriad
(affix)
→
Welsh
cyfeiriadur
(affix)
→
Welsh
cyfeirio
(affix)