Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
eolas
←
Middle Irish
eólas
(inherited)
←
Old Irish
eulas
(inherited)
→
Irish
aineolas
(affix)
→
Irish
eolasacht
(affix)
→
Irish
aiseolas
(affix)
→
Irish
eolasach
(affix)