E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Fighting Fifth (The).
The 5th Foot. This sobriquet was given to the regiment during the Peninsular War.
The Old and Bold Fifth, the Duke of Wellingtons Body-guard, is now called the Northumberland Fusiliers. What a terrible vexation must the abolition of the time-honoured names of our old regiments have been to our army!