Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
flaithiúil
←
Irish
flaith
(affix)
←
Irish
-úil
(affix)
←
Old Irish
flaithemail
(inherited)
→
Irish
flaithiúlach
(affix)