Potential "upset" in the Wisconsin recall race.

From a Journal Sentinel column titled "John Doe probe looms over Walker's recall election":

Republican activists will be upset if Milwaukee prosecutors file complaints against additional Walker aides before [the recall election on] June 5, arguing that the Democratic district attorney would be trying to influence the election.

But Democrats will be equally upset if charges wait until after the election, especially if Walker wins. Likewise, Republicans would accuse [Milwaukee County District Attorney John] Chisholm of trying to use the courts to tar the governor coming out of the recall race.

"Upset" is a funny word. Did you know that it originally meant "Set up, erected, raised up" (OED)? How did it get... upset? I think the origin is in the stomach. The meaning "Physically disordered" is "said esp. of the stomach." It seems to be the same "up" we find in "throw up" and "upchuck"!