Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
saiget
→
Middle Irish
saigteóir
(suffix)
→
Middle Irish
saigetbolc
(compound)
→
Middle Irish
saigtech
(affix)