Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
aeron
←
Proto-Brythonic
*aɨron
(inherited)
←
Proto-Celtic
*agronā
(inherited)
←
Welsh
eirin
(mention)
→
Welsh
aeronen
(affix)