Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
tom
←
Spanish
ton
(cognate)
←
Spanish
tono
(mention)
←
Spanish
son
(mention)
←
Ancient Greek
τόνος
(derived)
←
Ancient Greek
τείνω
(mention)
←
Portuguese
som
(mention)
←
Portuguese
trom
(doublet)
→
Spanish
tono
(cognate)
→
Portuguese
trom
(doublet)