Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
noght
←
Proto-Celtic
[[*eni]] [[*noxs|noxtē]]
(derived)
←
Proto-Celtic
[[*sindos|*sinday]] [[*noxs|noxtē]]
(mention)
←
Old Irish
innocht
(inherited)