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)