Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
bagair
←
Irish
ar
(mention)
←
Irish
bagair do mhéar
(link)
←
Irish
bagair do shúil
(link)
←
Old Irish
bacraid
(inherited)
←
Old Irish
bacar
(mention)