Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
esgusod
←
Latin
excūsātio
(derived)
←
Middle Welsh
esgusawd
(inherited)
→
Welsh
esgusodol
(affix)
→
Welsh
esgusodi
(affix)