Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
gnás
←
Irish
gnásúil
(link)
←
Irish
gnásach
(link)
←
Irish
gnásachán
(link)
←
Old Irish
gnás
(inherited)
←
Old Irish
gnáth
(mention)
→
Irish
gnásach
(affix)
→
Irish
gnásúil
(affix)