Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cenedl
←
Proto-Celtic
*kenetlom
(inherited)
←
Proto-Indo-European
*ken-
(derived)
←
Old Welsh
kenedel
(inherited)
→
Welsh
bachgen
(cognate)
→
Welsh
pencenedl
(affix)
→
Welsh
cenhedlu
(affix)
→
Irish
cineál
(cognate)