Note to King Lear, 4.1.58-63: "Obidicut . . . Flibbertigibbet"

King Lear,
Act 4, Scene 1, line 58
The names of the five devils are derived, sometimes with changed spelling, from Harsnett. Samuel Harsnett, who became Archbishop of York, was a contemporary of Shakespeare's who wrote A Declaration of Egregious Popish Impostures. According to Wikipedia, "Shakespeare used this book as a source, pulling words and phrases when writing the play King Lear, mainly spoken by Edgar while he feigns madness."

An exorcism