Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
assinar
←
Latin
assignāre
(derived)
←
Latin
assignō
(mention)
←
Latin
ad-
(mention)
←
Latin
signō
(mention)
←
Latin
signum
(mention)
←
Old Portuguese
assinar
(inherited)
→
Galician
asinar
(cognate)
→
Portuguese
assinatura
(suffix)