Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
adella
←
Proto-Celtic
*ɸalnati
(inherited)
←
Proto-Indo-European
*pelh₂-
(root)
←
Proto-Indo-European
*pelh₂-
(derived)
←
Old Irish
ad-
(affix)