n. [ F. poignard (cf. It. pugnale, Sp. puñal), fr. L. pugio, -onis; probably akin to pugnus fist, or fr. pugnus fist, as held in the fist. See Pugnacious. ] A kind of dagger, -- usually a slender one with a triangular or square blade. [ 1913 Webster ]

She speaks poniards, and every word stabs. Shak. [ 1913 Webster ]

v. t. [ imp. & p. p. Poniarded; p. pr. & vb. n. Poniarding. ] To pierce with a poniard; to stab. Cowper. [ 1913 Webster ]