Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
gweinydd
←
Welsh
gweini
(affix)
←
Welsh
-ydd
(affix)
→
Welsh
gweinyddes
(affix)
→
Welsh
gweinyddu
(affix)
→
Welsh
gweinyddwr
(affix)