Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Finucane
←
Irish
Ó Fionnmhacáin
(derived)
←
Irish
fionn
(mention)
←
Irish
macán
(mention)
←
Irish
mac
(mention)