Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
elfen
←
Breton
elfenn
(cognate)
←
Proto-Brythonic
*elβ̃en
(inherited)
←
Cornish
elven
(cognate)
←
Latin
elementum
(borrowed)