Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*glūnos
→
Breton
glin
(inherited)
→
Welsh
glin
(inherited)
→
Cornish
glin
(inherited)
→
Old Irish
glún
(inherited)