1. The Roman god of Peace.
2. Latin word meaning peace.
Taken from the latin word templārius, which means of the temple. And has taken to mean of the Temple of Solomon.
In retaliation for the team's refusal President came on national television an gave lengthy speech about possible enemies and dangers that already existed on American soil, and asked that any American that had the capability for mass destruction would have to register, and reveal their true identity to government authorities. So that they could be properly alerted to their current locations at all times.
And that’s exactly what happened, and the vast majority of Pax Templar members stopped operating as superheroes. At least publicly, there were still some that saved innocents and stopped criminal acts, but they made effort to keep a very subtle approach to everything they did. And the Extremist concerned himself and his own personal strikeforce with the capturing and imprisonment of the majority of villains that Pax Templars had previously fought before this point.
Now years have passed, and the country has forgotten what it was like when costumed heroes publicly walked amongst them, instead of carefully keeping to the shadows.
But someone is out there, someone who has a very personal vendetta against the original founding members, and demands retribution.