Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
-án
→
Irish
imleacán
(mention)
→
Middle Irish
oisín
(affix)
→
Middle Irish
úachtarán
(affix)
→
Middle Irish
casán
(affix)
→
Middle Irish
gillán
(affix)
→
Middle Irish
cnocán
(affix)