mis-

Bad or wrong; badly or wrongly.

misbehaviour; misspelling; to misbehave

Bad or wrong; badly or wrongly.

misidentification; to misidentify

Failed; in a manner resulting in failure (to do, complete or achieve something).

miscarriage (failed carriage of a pregnancy to term), to miscarry, to misacknowledge

Unintentional, accidental, mistaken; unintentionally, accidentally, mistakenly.

Yes, I did "Buy now", but it was a misclick.

I misclicked something on my computer, and now everything is in Hungarian!

False, falsely.

misaccusation, to misaccuse