"give a false or wrong date to, date erroneously," 1580s, from mis- (1) "badly, wrongly" + date (v.1). Related: Misdated; misdating. As a noun by 1832.
miscounsel
miscount
miscreant
miscredit
miscue
misdate
misdeal
misdeed
misdeem
misdemeanor
misdiagnose