E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Pixies (2 syl.).
The Devonshire Robin Goodfellows; said to be the spirits of infants who have died before baptism. The Pixy monarch holds his court like Titania, and sends his subjects on their several tasks. The word is a diminutive of Pix, probably the same as Puck. (Swedish, pyke; old English, pouk, bug, bogie; Danish, pog and pokker.)