What is the name of Hermes's staff with two snakes?

The story behind the answer

Caduceus is the name of Hermes’ staff, depicted with two intertwined snakes and often small wings. As the herald of the gods (Greek kerykeion), Hermes carried it as a symbol of communication, travel, commerce, and safe passage—roles later mirrored by the Roman Mercury. According to myth, Hermes used the staff to pacify two fighting snakes; they coiled around it, turning the rod into a sign of reconciliation and negotiation.

Don’t confuse it with the Rod of Asclepius, which has a single serpent and represents medicine and healing. Memory tip: “Ca-duo-ceus”—duo means two, so the c