Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
leac
←
Breton
lec'h
(mention)
←
Gaulish
Arelica
(mention)
←
Proto-Celtic
*ɸlikkā
(inherited)
←
Welsh
llech
(mention)
←
Ancient Greek
πλάξ
(mention)
←
Proto-Indo-European
*pl̥keh₂
(inherited)
←
Proto-Indo-European
*pleh₂-
(mention)
←
Cornish
lehan
(mention)
←
Old Irish
lecc
(inherited)