Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
Llywelyn
←
Proto-Brythonic
*Lluɣβelen
(inherited)
←
Proto-Celtic
*Lugus
(inherited)
←
Proto-Celtic
*Belinos
(mention)
←
Latin
Lugubelenus
(mention)
→
English
Lewis
(mention)
→
English
fluellen
(mention)
→
English
Llewelyn
(mention)
→
English
Llewellyn
(derived)