abracadabra: [16] This magical charm reached English, probably via French, from Greek abrasadabra (the c in the English word arose from a misinterpretation of the c in the original Greek word, which in the Greek alphabet stands for s). It seems to have originated (perhaps in the 3rd century AD) as a cabalistic word of the Basilidians, a Gnostic sect of Alexandria, and was probably based on Abraxas, the name of their supreme deity. [abracadabra etymology, abracadabra origin, 英语词源]