What does abraxas mean?
The definition of abraxas
A*brax”as, n.
Etym: [A name adopted by the Egyptian Gnostic Basilides, containing the Greek letters , , , , , , , which, as numerals, amounted to 365. It was used to signify the supreme deity as ruler of the 365 heavens of his system.]

A mystical word used as a charm and engraved on gems among the ancients; also, a gem stone thus engraved.