Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
skrivañ
←
Proto-Brythonic
*skriβenn
(inherited)
←
Welsh
ysgrifennu
(cognate)
←
Irish
scríobh
(mention)
←
Cornish
skriva
(cognate)
←
Latin
scrībendum
(derived)
←
Latin
scrībō
(mention)