Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*kʷrinati
→
Breton
prenañ
(inherited)
→
Middle Cornish
prena
(inherited)
→
Welsh
prynu
(inherited)
→
Cornish
perna
(inherited)
→
Old Irish
crenaid
(inherited)
→
Old Irish
focren
(mention)