The idiom "leg to stand on" is believed to have originated in the 17th century. It is thought to have come from the practice of dueling, in which a duelist who was wounded or unable to stand was said to have no leg to stand on and was therefore at a disadvantage. This idiomatic expression came to be used to describe someone who had no support or justification for their position or opinion.

英語での「leg to stand on」の定義と意味

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