E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Point d’Appui (French).
A standpoint; a fulcrum; a position from which you can operate; a pretext to conceal the real intention. Literally the point of support.
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“The material which gives name to the dish is but the point d’appui for the literary cayenne and curry-powder, by which it is recommended to the palate of the reader.”—The Athenœum.
