Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Cornish
gol
←
Proto-Indo-European
*weǵ-
(derived)
←
Latin
vigilia
(derived)
←
Latin
vigil
(mention)
→
Cornish
golyow
(suffix)
→
Cornish
golyow
(suffix)