sword

And beholding his bow snatched from him, Arjuna took up his sword, and wishing to end
the conflict, rushed at his foe. And then the Kuru prince, with the whole might of his arms, struck that
sharp weapon upon the head of the Kirata, a weapon that was incapable of being resisted even by solid
rocks. But that first of swords, at touch of the Kirata's crown, broke into pieces.

Varna Parva: Section XXXIX