Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
údar
←
Latin
auctor
(derived)
←
Middle Irish
ugtar
(inherited)
←
Old Irish
áugtor
(inherited)
→
Irish
banúdar
(affix)