Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
coicéile
←
Old Irish
com
(prefix)
←
Old Irish
céile
(prefix)
→
Irish
coigéile
(inherited)
→
Old Irish
coicéilsine
(suffix)