More on Frontino from Infoplease:

• Frontino - Frontino (See Horse.) Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894 Related ...
• Horse - Horse The public-house sign. The White Horse. The standard of the Saxons, and therefore impressed ...
• Dictionary of Phrase and Fable: F - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "F"