coup de grâce
noun
a death blow, especially one delivered mercifully to end suffering.
The grammatical form denoting more than one person, place, thing, or idea.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The syndrome caused kidney failure; a brain hemorrhage and pneumonia were the coups de grâce, Mr. Davies put forth.
From New York Times ● Aug. 24, 2010