Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
gweinidog
←
Welsh
gweinid
(affix)
←
Welsh
-og
(affix)
→
Welsh
gweinidogaeth
(affix)
→
Welsh
gweinidogol
(affix)