Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
eitre
←
Proto-Celtic
*enterɸrikyā
(inherited)
←
Proto-Celtic
*enter
(mention)
←
Proto-Celtic
*ɸrikā
(mention)
←
Irish
etrige
(mention)
←
Irish
etarche
(mention)
←
Middle Irish
eitre
(inherited)