Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
perthynas
←
Welsh
perthyn
(affix)
←
Welsh
-as
(affix)
→
Welsh
perthnasedd
(affix)
→
Welsh
perthnasol
(affix)