E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Cursing by Bell, Book, and Candle,
is reading the anathema in the church, then closing the Bible, tolling the bell, and extinguishing all the candles, saying Fiat, fiat! Do-to (close) the Book, quench the candles, ring the bell. Amen, amen.