Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
roghchlár
←
Irish
rogha
(compound)
←
Irish
clár
(compound)
←
Proto-Indo-European
*ǵews-
(root)
→
Irish
fo-roghchlár
(affix)