What did 'Shampooing' refer to when it was first introduced?

The term "shampooing" has quite an interesting history that stretches back to India. While today we immediately think of washing our hair, the word actually originated from the Hindi word "champu," which referred to a head massage. This practice was a common part of daily life in India, valued for its relaxing and therapeutic benefits. When traders and travelers from Britain encountered this custom in the 18th century, they adopted the word "shampooing" to describe the head massage itself. It wasn't until later, in the 19th century, that the meaning shifted to include washing the hair, as soaps and hair-washing techniques became more widespread. So, while it might be tempting to think of soap or cleaning, the original meaning of "shampooing" was specifically linked to the Indian art of head massage, a testament to the cultural exchange between Britain and India.