[verb mis-dahy-uh l, -dahyl; noun mis-dahy-uh l, -dahyl]
verb (used with or without object), mis·di·aled, mis·di·al·ing or (especially British) mis·di·alled, mis·di·al·ling.
  1. to dial incorrectly.
  1. an act or instance of misdialing.

Origin of misdial

First recorded in 1960–65; mis-1 + dial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for misdial

"to dial a wrong number on a telephone," 1964; see mis- (1) + dial (v.). Related: Misdialed; misdialing.

Online Etymology Dictionary, © 2010 Douglas Harper