Herugrim

Herugrim was the sword of King Théoden of Rohan, hidden from him for many years by his traitorous councilor Gríma Wormtongue.^[1] After being cured by Gandalf, Théoden recovered the sword, and rode with it to the Battle of the Hornburg and the Battle of Pelennor Fields.

Etymology

Herugrim means "Very fierce or cruel, savage" in Rohirric, as translated through Old English. It has been noted that herugrim is in the Mercian dialect of Old English (the spelling of the "standard" West Saxon dialect would have been heorugrim).^[2]^[3]

Weapons in Tolkien's legendarium
Arrows:	Black Arrow · Dailir · Red Arrow
Axes:	Dramborleg · Durin's Axe
Bows:	Belthronding · Bow of Bregor · Bow of the Galadhrim
Knives:	Angrist · Barrow-blades · Morgul-knife · Sting
Maces:	Grond
Spears:	Aeglos
Swords:	Anglachel/Gurthang · Anguirel · Aranrúth · Dagmor · Glamdring · Glend · Gúthwinë · Herugrim · Narsil/Andúril · Orcrist · Ringil · Sword of Manwë