I'm not sure exactly what you mean. You could add "mis-" to the front to get misfired.
Nee
Rug?
What is a three lettered word for ability to say something funny or clever things
bey
two, set
Gap or Col
ham
I suppose 'ski' would fit.
One three lettered word for each is all, any, or one.
There are several Latin two lettered words which can be used alone or can be added to other words. The word "ut" which means how or sometimes means but is one example. The word "ab" connotes motion away from a fixed point and the word "ad" connotes motion toward a point. Sometimes the ab/ad's are added to a word as a prefix. The word 'tu' means you.
mod, Emo
"I" is a word.