shampoo
UK[ʃæmˈpuː]US[ʃæmˈpuː]
n
A liquid soap for washing hair
n
A similar product for cleaning carpets, upholstery, or cars
v
To wash or clean something with shampoo
Etymology
The word 'shampoo' entered English in the mid-18th century from the Hindi word 'chāmpo' (चाँपो), an imperative form meaning 'to press, knead the muscles'. This, in turn, derived from the Sanskrit root 'capayati' (चपयति), meaning 'to pound, knead'. Initially, in English, 'shampoo' referred to a therapeutic massage, often as part of a Turkish bath. By the 1860s, the meaning had shifted specifically to the act of massaging and washing the head and hair, and subsequently to the soapy preparation used for that purpose. This semantic evolution from a general massage to a specific hair-washing product illustrates a classic case of meaning narrowing for a borrowed term.
Analysis
The word 'shampoo' is a simplex loanword from Hindi. It does not contain separable morphemes within the English spelling.
Examples
She uses a gentle shampoo for her sensitive scalp.
Remember to shampoo the carpet before the guests arrive.
This new shampoo promises to add volume to fine hair.