Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
eolach
←
Irish
eol
(affix)
←
Irish
-ach
(affix)
←
Middle Irish
éolach
(inherited)
←
Old Irish
éola
(inherited)
→
Irish
aineolach
(affix)