Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
éigiall
←
Irish
éa-
(affix)
←
Irish
ciall
(affix)
←
Middle Irish
éciall
(inherited)
→
Irish
éigiallmhar
(affix)