Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
tanchagem
←
Spanish
llantén
(cognate)
←
Latin
plantago
(inherited)
←
Portuguese
plantago
(doublet)
←
Old Portuguese
chantagem
(inherited)
→
Portuguese
plantago
(doublet)