Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
mangra
←
Spanish
mangla
(derived)
←
Latin
macula
(derived)
←
Portuguese
mancha
(doublet)
→
Portuguese
mancha
(mention)
→
Portuguese
malha
(mention)