英语词汇keep your fingers crossed的起源、历史背景-英语词源词典

keep your fingers crossed. Making the sign of the cross has long been thought to be effective in averting evil, but the use of crossed fingers as a symbol of the cross is American in ori- gin, probably originating as a superstition among blacks in the 17th century. The practice was also thought to bring good luck and resulted in the expression to keep your fingers crossed, as well as the belief among schoolchildren and others that a lie told with the fingers (or toes, or legs, etc.) crossed “doesn’t count.”

词汇	keep your fingers crossed
词源	keep your fingers crossed. Making the sign of the cross has long been thought to be effective in averting evil, but the use of crossed fingers as a symbol of the cross is American in ori- gin, probably originating as a superstition among blacks in the 17th century. The practice was also thought to bring good luck and resulted in the expression to keep your fingers crossed, as well as the belief among schoolchildren and others that a lie told with the fingers (or toes, or legs, etc.) crossed “doesn’t count.”
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