Proper noun
Satanas
(archaic) Satan.
After seeing Margaret Murray 's book The God of the Witches the leader of Ophite Cultus Satanas, Herbert Arthur Sloane, said he realized that the horned god was Satan (Sathanas). Source: Internet
The very point of the (pseudo-)etymology given for Satanas in this passage is to identify the Tempter addressed by Jesus in Matt 4:11 (conflated with Matt 16:23) with the serpent that tempted the first man. Source: Internet