Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
cuba
←
Proto-Indo-European
*kewp-
(derived(pt/gl))
←
Proto-Indo-European
*kewp-
(derived)
←
Latin
cūpa
(inherited)
←
Portuguese
copa
(doublet)
←
Old Portuguese
cuba
(inherited)
→
Portuguese
Cuba
(mention)
→
Portuguese
copa
(doublet)