Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
barril
←
Catalan
barril
(cognate)
←
Spanish
-
(cognate)
←
Old French
baril
(borrowed)
←
Old Occitan
barril
(borrowed)
←
Portuguese
-
(cognate)