Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
pláta
←
Old French
plate
(borrowed)
←
Ancient Greek
πλατύς
(derived)
→
Irish
pláitín
(affix)
→
Irish
plátáil
(affix)
→
Irish
uchtphláta
(affix)