Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
comórtas
←
Irish
-as
(affix)
←
Old Irish
commórad
(derived)
←
Old Irish
commóraid
(mention)
←
Old Irish
com-
(mention)
←
Old Irish
móraid
(mention)