Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
oíbnius
←
Middle Irish
oíbind
(affix)
←
Middle Irish
-as
(affix)
→
Irish
aoibhneas
(inherited)
→
Scottish Gaelic
aoibhneas
(inherited)
→
Manx
eunys
(inherited)