Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
braon
←
Old Irish
bráen
(inherited)
→
English
Brennan
(mention)
→
English
McBreen
(mention)
→
Irish
Aibreán
(mention)