Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ladin
pien
←
Friulian
plen
(cognate)
←
Italian
pieno
(cognate)
←
Latin
plēnus
(derived)
←
Romansch
plagn
(cognate)
←
Romansch
plein
(mention)
←
Venetian
pien
(cognate)