A Squib, also known as a wizard-born, is a non-magical person who is born to at least one magical parent. Squibs are, in essence, 'wizard-born Muggles.' They are rare and are looked upon with a degree of disdain by some witches and wizards, particularly pure-bloods. Muggle-born witches and wizards are descended from Squibs who married Muggles: the magical ability unexpectedly resurfaces after many generations.