Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
neithiwr
←
Breton
neizheur
(cognate)
←
Proto-Celtic
(inherited)
←
Proto-Celtic
*noxs
(mention)
←
Welsh
neithiwyr
(mention)
←
Proto-Indo-European
*nókʷts
(inherited)
←
Cornish
nyhewer
(cognate)