Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Friulian
aiar
←
Italian
aria
(cognate)
←
Latin
aēr
(inherited)
←
Romansch
ajer
(cognate)
←
Romanian
aer
(cognate)
←
Venetian
aiere
(cognate)