The Pentagrammaton. Formed by adding the Hebrew letter Shin, associated with the Holy Spirit, to the center of the Tetragrammaton (YHVH). An Anglicized version of the Greek Jesu, itself a version of the Hebrew or Aramaic Yehahshuah. It was used by some Renaissance Christian Kabbalists as the supreme word of power in their magick and worship. Some modern Christians also use it as a name for Jesus but usually do not understand it's source.