Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romansch
pugn
←
Proto-Indo-European
*puǵ-no-
(derived)
←
Proto-Indo-European
*peuǵ-
(mention)
←
Proto-Indo-European
*peuḱ-
(mention)
←
Latin
pugnus
(inherited)
→
Emilian
pùgn
(cognate)
→
Emilian
póggn
(cognate)
→
Friulian
pugn
(cognate)