Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
union
←
Welsh
un
(compound)
←
Welsh
iawn
(compound)
→
Welsh
unioni
(affix)
→
Welsh
uniongyrchol
(compound)
→
Welsh
yn union
(compound)