E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
An hypothetical island feigned by Shakespeare to be enchanted, and inhabited by witches and devils. Supposed by some to be Bermudas; but a correspondent in Notes and Queries (January 23rd, 1886, p. 72) utterly denies this, and favours the suggestion that the island meant was Lampedusa.
From the still-vexed Bermooths, there shes hid.