Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
gwogawn
←
Proto-Celtic
*uɸo-kān-
(inherited)
←
Proto-Celtic
*kān-
(mention)
→
Welsh
digon
(mention)
→
Welsh
gogoniant
(affix)
→
Welsh
digoni
(mention)