Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
oifigeach
←
Old Irish
oificech
(inherited)
←
Old Irish
oific
(mention)
→
Irish
fo-oifigeach
(affix)
→
Irish
ardoifigeach
(affix)