Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Finnegan
←
Irish
Ó
(borrowed)
←
Irish
Fionnagáin
(mention)
←
Irish
Fionnagán
(mention)
←
Old Irish
Finnacán
(mention)