Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ancient Greek
κάρνον
←
Gaulish
carnon
(derived)
←
Proto-Celtic
*karnos
(derived)
←
Ancient Greek
κέρας
(mention)
←
Ancient Greek
κάρᾱ
(mention)
←
Ancient Greek
κάρηνον
(mention)
←
Proto-Indo-European
*ḱerh₂-
(root)
←
Proto-Indo-European
*ḱerh₂-
(derived)