bay·o·net 
(bā′ə-nĕt, bāə-nĭt, -nĕt′)
(bā′ə-nĕt, bāə-nĭt, -nĕt′)n.
A blade adapted to fit the muzzle end of a rifle and used as a weapon in close combat.
tr.v. bay·o·net·ed, bay·o·net·ing, bay·o·nets or bay·o·net·ted or bay·o·net·ting
To prod, stab, or kill with this weapon.
[French baïonnette, after Bayonne, a town of southwest France where the weapon was manufactured.]