Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
fathach
←
Old Irish
aithech
(inherited)
→
Irish
fo-fhathach
(affix)
→
Irish
ollfhathach
(prefix)
→
Irish
banfhathach
(affix)