Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
chato
←
Ancient Greek
πλατύς
(derived)
←
Portuguese
prato
(doublet)
→
Spanish
chato
(cognate)
→
Portuguese
prato
(doublet)
→
Portuguese
chatear
(suffix)
→
Portuguese
prata
(mention)
→
Portuguese
achatar
(affix)
→
Portuguese
tacho
(mention)
→
Portuguese
chatice
(affix)