This word describes a violent, furious windstorm—the kind that sweeps across water with destructive force, threatening to capsize boats and drown their occupants. The Gospels use it twice in accounts of Jesus calming storms: Mark 4:37 describes the great windstorm that arose on the Sea of Galilee, filling the boat with water while Jesus slept, and Luke 8:23 recounts the parallel incident. 2 Peter 2:17 uses the word metaphorically, comparing false teachers to waterless springs and mists driven by a storm—promising refreshment but delivering nothing, unstable and driven by chaotic forces rather than truth.