Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
ieithydd
←
Welsh
iaith
(affix)
←
Welsh
-ydd
(affix)
←
Welsh
ieithyddiaeth
(link)
←
Welsh
ieithyddol
(link)
←
Welsh
iaith
(affix)
←
Welsh
-ydd
(affix)
→
Welsh
ieithyddiaeth
(affix)