shampoo
noun
[ ʃamˈpuː ]
• a liquid preparation for washing the hair.
• "he smelt clean, of soap and shampoo"
shampoo
verb
• wash or clean (something, especially the hair) with shampoo.
• "Dolly was sitting in the bath shampooing her hair"
Origin:
mid 18th century (in the sense ‘massage (as part of a Turkish bath process)’): from Hindi cāṃpo! ‘press!’, imperative of cāṃpnā .