Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
caisleán
←
Irish
-án
(affix)
←
Irish
caiseal
(mention)
←
Latin
castellum
(derived)
←
Middle Irish
caislén
(inherited)
←
Old Irish
caisel
(inherited)