Where does “noyau” come from?

noyau (French) comes from Middle French noyau, from Old French noel, from Latin nātālis, 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.

noyau (French): stone (of a fruit), pit (of a fruit)