Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
kiunys
←
Irish
ciúnas
(cognate)
←
Scottish Gaelic
ciùineas
(cognate)
←
Manx
kiune
(affix)
←
Manx
-ys
(affix)
←
Middle Irish
ciúnas
(inherited)
←
Old Irish
ciúin
(mention)
←
Old Irish
-as
(mention)