Where does “nada” come from?

nada (Portuguese) comes from Old Portuguese nada, from Latin nata, from Latin nātus, from Latin gnātus, from Proto-Italic gnātos, from Proto-Indo-European ǵn̥h₁tós, from Proto-Indo-European ǵenh₁- — to produce, to beget, to give birth.

nada (Portuguese): nothing; to no extent; in no way; not at all;...