Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
aicíd
←
Latin
accidentia
(derived)
←
Old Irish
aiccidit
(inherited)
→
Irish
aicídeach
(affix)
→
Irish
aicídeach
(affix)