The 'walk/run' radical. A bronze-script pictograph of a swinging-armed person above 止 (foot) — originally meaning 'to run', later shifted to 'to walk'. Indexes a productive set of motion verbs and speed-adverbs: 起 (rise), 赶 (catch up), 越 (cross over), 趋 (hurry toward), 趁 (take advantage of), 趴 (lie prone). The radical occupies the lower-left wrap of the character.