E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Æson’s Bath.
Sir Thomas Browne (Religio Medici, p. 67) rationalises this into “hair-dye.” The reference is to Medea renovating Æson, father of Jason, with the juices of a concoction made of sundry articles. After Æson had imbibed these juices, Ovid says:—
re, colorem.”
