Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
beirt
←
Old Irish
beirt
(inherited)
←
Old Irish
bert
(mention)
→
Irish
dó
(link)
→
Irish
dhá
(mention)