Here are some examples of words with the root "mis":
* Misunderstand: to understand incorrectly
* Misinterpret: to interpret incorrectly
* Misconduct: improper behavior
* Mishap: an unfortunate accident
* Misfortune: bad luck
* Misanthrope: someone who dislikes humanity
* Misogyny: hatred or prejudice against women
* Missile: a projectile weapon (literally "something that is thrown badly")
The root "mis" is often used in combination with other words to create new words with negative meanings.