Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cranc
←
Breton
krank
(cognate)
←
Proto-Brythonic
*krank
(inherited)
←
Latin
cancer
(derived)
←
Middle Welsh
cranc
(inherited)