Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
gnáth-
←
Irish
gnáth
(mention)
←
Proto-Indo-European
*ǵneh₃-
(root)
→
Irish
gnáthdhuine
(affix)