A word from the Kabala formerly used by rabbis for exorcisms
of the evil spirit. It is made up of the initial letters of the
Hebrew words, Athah gabor leolam, Adonai, meaning, Thou art
powerful and eternal, Lord. Among superstitious Christians it
was also a favorite weapon with which to combat the evil one,
as late as the sixteenth century. It is found in many books on
magic, notably in the Enchiridion ascribed to Pope Leo III.