Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
neantóg
←
Irish
neanta
(affix)
←
Irish
-óg
(affix)
→
Welsh
danadl
(cognate)
→
Irish
caochneantóg
(compound)