Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
bresych
←
Proto-Brythonic
*brėsɨx
(inherited)
←
Latin
brassica
(derived)
←
Middle Welsh
bressych
(inherited)
→
Welsh
bresychen
(affix)
→
Welsh
bresychaidd
(suffix)
→
Welsh
blodfresych
(compound)
→
Latin
brassica
(cognate)