Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
pesadilla
←
Spanish
pesado
(affix)
←
Spanish
-illa
(affix)
←
Portuguese
pesadelo
(cognate)
→
Spanish
sueño
(link)
→
Portuguese
pesadelo
(cognate)