When a judge overturns a jury's verdict it is known as?

When a judge overturns a jury's verdict, it is known as a "judgment notwithstanding the verdict" (JNOV) or simply a "judgment n.o.v." This legal action occurs when the judge concludes that no reasonable jury could have reached the given verdict based on the evidence presented. It allows the judge to set aside the jury's decision and render a different ruling.