Home › Words › M › misoperatemisoperatemisoperate means to operate incorrectly.EtymologyFrom mis- + operate.verbTo operate incorrectly.e.g.“Our research suggests that many signals could mis-operate during the [solar] storm, but at present we can't say precisely which signals are going to be affected or when the faults would occur.” — 2023 November 15, Prof. Jim Wild, “This train was delayed because of bad weather in space”, in RAIL, number 996, page 31:Definitions & examples from Wiktionary (CC BY-SA 3.0).