Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
uvel
←
Welsh
ufyll
(cognate)
←
Cornish
huvel
(cognate)
←
Latin
humilis
(derived)
←
Middle Breton
uuel
(inherited)