E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A bankrupt. The French call a bankrupt Safranier, and Aller au safran means to be made a bankrupt. The allusion is to the ancient custom of painting the house of a traitor yellow. It will be remembered that the house of the Petit Bourbon was long so stigmatised on account of the treason of the Constable Bourbon.