Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
buíochas
←
Irish
buíoch
(affix)
←
Irish
-as
(affix)
←
Scottish Gaelic
buidheachas
(cognate)
←
Old Irish
buídechus
(inherited)
→
Irish
buíoch
(link)
→
Scottish Gaelic
buidheachas
(cognate)