The Javelin Dreadnaught was a warship conceived by the Imperial Science Bureau during the Cold War for Darth Mekhis, the head of the Sphere of Technology at the time. It was equipped with some kind of radiation superweapon emitted through its shields, capable of eradicating life in a three kilometers radius. After a weapon test, the ship was sent as a gift to Darth Marr.
During a private conversation with a subordinate imperial officer, Darth Mekhis secretly christened the ship the Ror'jhan, which meant "she-whose-leaves-sweat-poison".