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(someone's) courage fails him/her

idiom

: someone loses courage or becomes afraid
In the face of continued threats, (his) courage failed him.

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“(someone's) courage fails him/her.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/%28someone%27s%29%20courage%20fails%20him%2Fher. Accessed 3 Dec. 2025.

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