Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
monco
←
Proto-Indo-European
*mew-
(derived)
←
Latin
muccus
(inherited)
←
Latin
mūcus
(mention)
←
Portuguese
muco
(doublet)
→
Portuguese
muco
(doublet)