نغض

Core meaning

To shake the head with a repeated movement, as a sign of doubt or mockery.

Uses

1. فَسَيُنْغِضُونَ → "they will shake their heads" : the gesture that accompanies the incredulous question.

   • «فَسَيُنْغِضُونَ إِلَيْكَ رُءُوسَهُمْ» — "Then they will shake their heads at you" (17:51)

Evidence from the text

The word occurs only in 17:51. Those who doubt they will be brought back after becoming bones and dust (17:49) shake their heads at the messenger, then ask: "When will that be?" The gesture and the question go together: the shaking says the disbelief before speech puts it into words.

The complement "at you" directs the gesture at the one addressed: it is the body's answer to what has just been affirmed.