Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
trecho
←
Spanish
tracto
(doublet)
←
Latin
tractus
(inherited)
→
Spanish
tracto
(doublet)
→
Spanish
pertrecho
(link)
→
Galician
treito
(cognate)
→
Portuguese
trecho
(borrowed)