Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
parchu
←
Proto-Brythonic
*parxɨd
(inherited)
←
Latin
parcō
(derived)
←
Middle Welsh
parchu
(inherited)
→
Welsh
parch
(back-formation)
→
Welsh
parchedig
(affix)