Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
dosso
←
French
dos
(cognate)
←
Latin
dorsum
(inherited)
←
Portuguese
dorso
(doublet)
←
Romanian
dos
(cognate)
←
Old Portuguese
dosso
(inherited)
→
Portuguese
dorso
(doublet)