Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
frithchaith
←
Irish
frith-
(affix)
←
Irish
caith
(affix)
→
Irish
frith-chaithmhéadracht
(affix)