From an unused root meaning to rasp; a saw -- saw.
Isaiah 10:15HEB:אִם־ יִתְגַּדֵּ֤ל הַמַּשּׂוֹר֙ עַל־ מְנִיפ֔וֹNAS: the one who chops with it? Is the saw to exaltKJV: itself against him that heweth therewith? [or] shall the saw magnifyINT: lo to exalt is the saw over wields