Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Piedmontese
giaj
←
Ancient Greek
Γαγάτης
(derived)
←
Latin
gagāten
(derived)
←
Latin
gagātes
(mention)