Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
uaidhsean
←
Irish
uaidh
(affix)
←
Irish
-san
(affix)
→
Scottish Gaelic
uaithesan
(cognate)