Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
plyg
←
Welsh
plygu
(back-formation)
→
Welsh
hyblyg
(affix)
→
Welsh
triphlyg
(affix)
→
Welsh
allblyg
(affix)
→
Welsh
mewnblyg
(affix)