Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
domhan
←
Proto-Indo-European
*dʰewbʰ-
(root)
←
Old Irish
domun
(inherited)
→
Irish
domhanda
(affix)