SATAN MEANS TRUTH IN SANSKRIT; Here are a few examples of the meaning of Satan,
Satan originally means TRUTH in Sanskrit, not adversary.
-Sanatan = Eternal
-Satanama = the cycle of birth, life, death and rebirth
-Satyan = of truth
-Satsang = the wise
-Satah = of the eternal
-Satyasa = of truth
-Satyameva = truth alone