er·ror /ˈerər/
Noun
1. a deviation from accuracy or correctness; a mistake, as in action or speech
“An error doesn't become a mistake until you refuse to correct it."
- Orlando A. Battista (1917 - 1995) 2. a belief in what is untrue “The stream of time sweeps away errors, and leaves the truth for the inheritance of humanity." - Georg Brandes (1842 - 1927)