Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
leagáid
→
Irish
leagáideacht
(suffix)
→
Irish
leagáidí
(affix)
→
Irish
sainleagáid
(affix)