The Hebrew word niyd refers to a shaking of the head, a swaying motion, or the state of wandering. It can indicate sympathetic head-shaking (condolence) or mocking head-shaking (scorn). The term derives from the root nud, meaning to move to and fro, to wander, or to show sympathy.
In the Old Testament, niyd often appears in contexts of mourning and sympathy. The act of shaking or nodding the head at someone's suffering could express genuine compassion or, conversely, contempt. Theologically, the word illustrates how God's people are called to genuine compassion rather than superficial gestures. Job's friends, for example, are rebuked for offering hollow consolation. The concept challenges believers to move from mere visible expressions of sympathy to substantive acts of comfort and restoration.