Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
naidheachd
←
Irish
nuacht
(cognate)
←
Scottish Gaelic
nuadh
(affix)
←
Scottish Gaelic
-achd
(affix)