Comment Re:New word for Webster's (Score 1) 238
It's not a valid word. You are attempting to form the agent noun from treason, and the most common and regular way to do that is with the ending "-er" as in beat+er=beater or roast+er=roaster. But it is incorrect in this case, the noun is irregular, and the correct agent form is traitor "one who commits treason."
Also, the founding fathers saw fit to define treason very very narrowly and to do so in the Constitution itself, which is why the charge would not fit in the US, though it might be possible were this in a different jurisdiction.