Etymology
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bowie knife (n.)
"heavy-single-edged sheath-knife used early 19c. on the U.S. frontier," 1827, named for its inventor, U.S. fighter and frontiersman Col. James "Jim" Bowie (1799-1836), and properly pronounced "boo-ee."
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coup de grace (n.)

"a single blow or stroke, dispatching one condemned or mortally wounded to put an end to misery," 1690s, from French coup degrâce, literally "stroke of grace;" the merciful death-blow that ends another's suffering (see coup + grace (n.)).

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