Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
brabús
←
Old Irish
brabach
(cognate)
→
Irish
brabúsach
(affix)
→
Irish
brabúsaí
(affix)
→
Irish
brabúsacht
(affix)