Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
menhir
←
Breton
maen-hir
(derived)
←
Breton
maen
(mention)
←
Breton
hir
(mention)
←
Welsh
maen hir
(cognate)
←
French
menhir
(borrowed)
←
Proto-Indo-European
*seh₁-
(root)
←
Proto-Indo-European
*méǵh₂s
(derived)
←
Proto-Indo-European
*seh₁-
(derived)
←
Cornish
mênhere
(cognate)
→
English
dolmen
(mention)