Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
bairgen
←
Proto-Celtic
*baragenā
(mention)
←
Welsh
bara
(cognate)
→
Breton
bara
(cognate)
→
Welsh
bara
(cognate)
→
Irish
bairín
(inherited)
→
Latin
fertum
(cognate)