Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
cloïd
→
Irish
clóigh
(inherited)
→
Old Irish
conerchloí
(affix)
→
Old Irish
conimchloí
(affix)