Etymology

Magical word used in certain Gnostic writings, relation to Greek Abraxas, a Gnostic deity.

It may also be a corruption of the Aramaic term , avda kedavra; “what was said has been done”; or perhaps, , avra kedavra; “what has said has come to pass.”

It may also be the combination of three hebrew words when it is read from right to left http://www.scribd.com/doc/14656725/Abracadabra .

The Aramaic is the source of the Avada Kedavra killing curse in the Harry Potter books.

Interjection

1. Used to indicate that a magic trick or other illusion has been performed.

Noun

1. A mystical word or collocation of letters from kabbalism.
2. Complicated technicalities, jargon that one does not understand much if at all.

   I don’t know all the theoretical abracadabra about how it works, I’m only its pilot.

Noun

1. An unspecified magical formula.
2. A mystical word from kabbalism.