mis·step \“+\noun Etymology:mis- (I) + step (n.) 1.: a wrong step < made a misstep and fell down the stairs > 2. a.: a mistake in judgment or action : blunder < a misstep that could lead to disaster > b.: a lapse in sexual behavior by a girl or woman; especially: the bearing of an illegitimate child < a misstep of her youth that she tried to keep a secret >