Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
brwyn
←
Proto-Celtic
*brugnos
(inherited)
←
Proto-Celtic
*brīnika
(inherited)
←
Irish
brón
(cognate)
→
Welsh
brwyna
(affix)
→
Welsh
brwynen
(affix)
→
Galician
bringa
(cognate)