Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
cor
←
Proto-Celtic
*koros
(inherited)
←
Proto-Indo-European
*(s)ker-
(root)
←
Proto-Indo-European
*(s)ker-
(derived)
→
Irish
cor
(inherited)
→
Irish
coir
(mention)
→
Irish
sochar
(mention)
→
Irish
dochar
(mention)
→
Scottish Gaelic
car
(inherited)
→
Scottish Gaelic
cor
(inherited)
→
Scottish Gaelic
cagar
(mention)
→
Manx
cur
(mention)
→
Old Irish
foceird
(mention)
→
Old Irish
dechor
(affix)
→
Old Irish
taidchor
(affix)