Robber Zhi is the archetypal bandit in the Zhuangzi.
Tips
history
跖 is not used independently in modern Chinese (anatomy now uses 跖骨 'metatarsal' as a technical term). It is best known from 盗跖, the legendary brigand in the 庄子. It joins the foot radical 足 with the phonetic 石.
register
Literary and technical; survives mainly in the anatomical term 跖骨 and classical names, not in everyday speech.