Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ósta
←
Middle Irish
ósta
(inherited)
→
Irish
óstach
(affix)
→
Irish
óstóir
(affix)
→
Irish
óstán
(affix)