The Blade of Nyenthi'Oris, which translates to Blade of the Great Tree, was a single-handed sword forged by the inhabitants of Kerritamba Village, situated within the Kkowir Forest on the planet of Kashyyyk. Legend states that it radiated the Kerritamba people's pride and was bestowed only upon the most deserving individuals. Following the Battle of Yavin during the Galactic Civil War, a spacer received one of these swords as a token of gratitude for their significant aid to the village and its people. Chief Kerritamba presented the sword to the spacer after the individual had successfully cured the village's Great Tree of a mysterious ailment.
The Blade of Nyenthi'Oris made its debut in Star Wars Galaxies: Rage of the Wookiees, a 2005 expansion pack for the MMORPG Star Wars Galaxies: An Empire Divided before the game's servers were shut down on December 15, 2011. The game was developed by Sony Online Entertainment. Players received it as a reward for helping the Kerritamba villagers heal their Great Tree from an unidentifiable disease. It is referenced, along with its basic statistics, in the weapon lists of both the Star Wars Galaxies: The Total Experience: Prima Official Game Guide and the Star Wars Galaxies: The Complete Guide: Prima Official Game Guide. With the arrival of Game Update 5 on June 28, 2008, players gained the ability to break down this weapon, along with numerous other unique items, into a schematic. This schematic could then be given to a Munitions Trader, who could recreate the weapon, drastically improving its effectiveness in combat.