Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
cumhscú
←
Old Irish
cumscugud
(inherited)
←
Old Irish
con·oscaigi
(mention)
→
Irish
bithchumhscú
(affix)
→
Irish
reo-chumhscú
(compound)