Lawgiver

noun
The standard sidearm issued to Judges in Mega City One.
Source
2000 AD: Robot Wars

Gridfire

noun
A method of creating a dimensional rift that releases astronomical amounts of energy into realspace from the energy grid between universes.
Source
Consider Phlebas

Titanfall

noun
Deployment of a “Titan” robot from orbit to the surface of a planet.
Source
Titanfall

Persuadertron

noun
A chemical weapon that renders the victim totally open to suggestion.
Source
Syndicate

Lightsabre

noun
A sword consisting of a hilt which projects a self-terminating blade of plasma.
Origin
Sabre, a type of military sword.
Source
Star Wars Episode IV: A New Hope