Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
digalon
←
Welsh
di-
(affix)
←
Welsh
calon
(affix)
→
Welsh
digalonni
(affix)
→
Welsh
digalondid
(affix)