Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
bárach
←
Proto-Celtic
*bāregos
(inherited)
←
Welsh
bore
(cognate)
→
Breton
beure
(cognate)
→
Welsh
bore
(cognate)
→
Irish
amárach
(mention)
→
Irish
márach
(derived)
→
Scottish Gaelic
a-màireach
(mention)
→
Manx
mairagh
(mention)
→
Cornish
bore
(cognate)
→
Old Irish
i mbárach
(mention)