Word Origin & History
shampoo1762, "to massage," from Anglo-Indian shampoo, from Hindi champo, imperative of champna "to press, knead the muscles," perhaps from Skt. capayati "pounds, kneads." Meaning "wash the hair" first recorded 1860; extended 1954 to carpets, upholstery, etc. The noun meaning "soap for shampooing" first recorded
EXPAND1866.
COLLAPSE