Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
disgyn
←
Breton
disken
(cognate)
←
Proto-Brythonic
*diskɨnnɨd
(inherited)
←
Latin
dēscendō
(derived)
←
Latin
dē-
(mention)
←
Latin
scandō
(mention)
←
Middle Welsh
diskyn
(inherited)