Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
sain-
←
Old Irish
sain
(inherited)
→
Irish
sainleagáid
(affix)
→
Irish
sainghníomhaíocht
(affix)