Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
aelod
←
Proto-Brythonic
aɣlọd
(inherited)
←
Proto-Celtic
*ɸaɡlātus
(inherited)
←
Proto-Indo-European
*peh₂ǵ-
(derived)
←
Middle Welsh
aelaut
(inherited)
→
Welsh
aelodau
(affix)
→
Welsh
aelodaeth
(suffix)
→
Welsh
aelodiaeth
(suffix)