Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
quanto
←
Latin
quantus
(inherited)
←
Portuguese
quantum
(doublet)
←
Old Portuguese
quanto
(inherited)
→
Spanish
cuanto
(cognate)
→
Spanish
cuánto
(cognate)
→
Kristang
kantu
(inherited)
→
Papiamentu
kuantu
(derived)
→
Papiamentu
kuantor
(inherited)
→
Portuguese
quantum
(doublet)
→
Portuguese
quantificador
(suffix)