Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
diwrnod
←
Welsh
siwrnai
(doublet)
←
Latin
diurnus
(derived)
←
Latin
diēs
(mention)
←
Middle Welsh
diwarnawt
(inherited)
→
Welsh
siwrnai
(doublet)