The word "攘攘" is formed by reduplicating the single character "攘", which is a phono-semantic compound composed of the hand radical "扌" on the left, indicating actions like pushing or jostling, and the component "襄" on the right, which primarily provides phonetic guidance. This duplication serves to emphasize and intensify the meaning, resulting in an adjective that describes a state of bustling, crowded, or chaotic activity.