E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Sylphs,
according to Middle Age belief, are the elemental spirits of air; so named by the Rosicrucians and Cabalists, from the Greek silph (a butterfly or moth). (See GNOMES.)
1
Sylphs. Any mortal who has preserved inviolate chastity may enjoy intimate familiarity with these gentle spirits. All coquettes at death become sylphs, and sport and flutter in the fields of air.