Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
aveia
←
Spanish
avena
(cognate)
←
Galician
avea
(cognate)
←
Latin
avēna
(derived)
←
Old Portuguese
avẽa
(inherited)
→
Galician
avea
(cognate)