Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
briathar
←
Old Irish
bríathar
(inherited)
→
Irish
dobhriathar
(affix)
→
Irish
briathartha
(affix)
→
Irish
dea-bhriathar
(affix)