Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
socamail
←
Old Irish
so
(prefix)
←
Old Irish
accomol
(prefix)
→
Irish
sócúl
(inherited)
→
Middle Irish
socamail
(inherited)