From Middle English misbelieven, misbileven, equivalent to mis- + believe.
misbelieve (third-person singular simple present misbelieves, present participle misbelieving, simple past and past participle misbelieved)
- (intransitive) To believe incorrectly; hold to a false belief.
- (transitive) To disbelieve; doubt.
1960, Daud Rahbar, God of Justice, page 356:
- Verily, those who misbelieve and obstruct the way of God, have erred a wide error.
- The West Somerset Word-book: A Glossary of Dialectal and Archaic Words,' Frederick Thomas Elworthy, Page 479