Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
urghabh
←
Irish
ur-
(affix)
←
Irish
gabh
(affix)
←
Middle Irish
aurgabaid
(inherited)
←
Old Irish
ar·gaib
(inherited)