Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*wregeti
→
Breton
ober
(derived)
→
Welsh
gwneud
(inherited)
→
Pictish
ᚒᚏᚏᚐᚉᚈ
(inherited)