The shelf / Luck / French

FRENCH

Merde !

(One word. Excuse my French.)

MEANS

Good luck. Said to actors before they go on stage.

Don't say thank you

In Italian you answer “May the wolf die!”, because saying thanks is held to bring bad luck. In Russian you answer “To the devil!”.

Source: Linternaute, theatre sources.

On the label: Break a leg

Watch it

The film: “M*rde. He was wished good luck four times today”

The same idea, elsewhere

From “Break a leg” to French.

ENGLISHBreak a leg.The one you know.Theatre slang since the 1920s (Wikipedia).
GERMANHals- und Beinbruch!“Neck and leg fracture!”Duden.
ITALIANIn bocca al lupo!“Into the wolf's mouth!”Accademia della Crusca. A hunters' wish.
RUSSIANНи пуха ни пера!“Neither fur nor feather!”Fedorov, Phraseological Dictionary of the Russian Literary Language.
FRENCHMerde !(One word.)Linternaute, theatre sources.