Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
ethol
→
Welsh
etholwr
(affix)
→
Welsh
etholiad
(affix)
→
Welsh
etholaeth
(affix)
→
Welsh
etholfraint
(link)
→
Welsh
dethol
(affix)