Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
diawl
←
Breton
diaoul
(cognate)
←
Ancient Greek
διάβολος
(derived)
←
Cornish
dyowl
(cognate)
←
Latin
diabolus
(borrowed)
←
Old Welsh
diaul
(inherited)