Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
sabhdán
←
Middle Irish
sabdán
(inherited)
→
Irish
sabhdánach
(affix)
→
Irish
bansabhdán
(affix)
→
Irish
sabhdánacht
(affix)