Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
duilleachán
←
Irish
duilleach
(affix)
←
Irish
-án
(affix)
←
Middle Irish
duillechán
(inherited)
←
Middle Irish
duille
(mention)