Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
ligar
←
Proto-Indo-European
*leyǵ-
(derived)
←
Latin
ligāre
(learned borrowing)
←
Latin
ligō
(mention)
←
Portuguese
liar
(doublet)
←
Old Portuguese
legar
(mention)
→
Portuguese
liga
(mention)
→
Portuguese
ligação
(suffix)
→
Portuguese
desligar
(prefix)
→
Portuguese
interligar
(prefix)