Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
dogní
←
Proto-Indo-European
*ǵenh₁-
(root)
←
Old Irish
dí
(prefix)
←
Old Irish
gníid
(prefix)