Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
echryd
←
Welsh
ech-
(affix)
←
Welsh
cryd
(affix)
→
Welsh
echrydus
(affix)
→
Welsh
echrydu
(affix)