E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Azaz’el.
The scape-goat; so called by the Jews, because the high priest cast lots on two goats; one lot was for the Lord, and the other lot for Azaz’el or Satan, and the goat on which the latter lot fell was the scape-goat.
