Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cydsynio
←
Welsh
cyd-
(affix)
←
Welsh
synio
(affix)
→
Welsh
anghydsynio
(affix)
→
Welsh
cydsyniad
(affix)
→
Welsh
cydsyniol
(affix)