Do most of the Wicca and Neo-Pagan symblos come from Celtic and Nordic original symbolism?
To an extent, but some Neo-Pagans do however. They often blend cultures like Celtic, Norse, Greco-Roman, Egyptian, East Indian, Oriental, Cabbalistic & Alchemaic. They also can draw from the Rroma, the Vodoun, Australian aboriginal, several Native America tribes,some South American tribes and any number of signs and symbols specific to pagan pathways of our histories.