Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
aane
←
Middle Irish
ae
(derived)
←
Old Irish
óa
(derived)
→
Manx
aaneagh
(affix)
→
Manx
aanid
(suffix)