Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Welsh
-awl
←
Proto-Celtic
*-ālos
(inherited)
←
Latin
-ālis
(derived)
→
Welsh
-ol
(inherited)
→
Welsh
-iol
(inherited)