Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
porpra
←
Catalan
púrpura
(doublet)
←
French
pourpre
(cognate)
←
Ancient Greek
πορφύρα
(derived)
←
Italian
porpora
(cognate)
←
Latin
purpura
(inherited)
←
Occitan
porpra
(cognate)
→
Catalan
púrpura
(doublet)