Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
céadfa
←
Middle Irish
cétfaid
(inherited)
←
Old Irish
cétbuid
(inherited)
←
Old Irish
ceta·bí
(mention)
→
Irish
céadfaigh
(affix)
→
Irish
céadfacht
(affix)
→
Irish
céadfach
(affix)
→
Irish
bréagchéadfa
(affix)