Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
serão
←
Galician
serán
(cognate)
←
Latin
serus
(inherited)
←
Portuguese
sarau
(doublet)
←
Old Portuguese
seran
(inherited)
→
Spanish
sarao
(borrowed)
→
Galician
serán
(cognate)
→
Portuguese
sarau
(doublet)