Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
arwerthu
←
Welsh
ar-
(affix)
←
Welsh
gwerthu
(affix)
→
Welsh
arwerthiant
(affix)
→
Welsh
arwerthwr
(affix)