Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
cantaireacht
←
Irish
cantaire
(affix)
←
Irish
-acht
(affix)
←
Middle Irish
cantairecht
(inherited)
→
Irish
réchantaireacht
(affix)