Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
caoin
←
Welsh
cwyn
(cognate)
←
Scottish Gaelic
caoin air ascaoin
(link)
←
Middle Irish
caín
(inherited)
←
Old Irish
caín
(mention)
→
Scottish Gaelic
guil
(link)