Main Entry: ¹sham·poo

Pronunciation: \sham-ˈpü\

Function: transitive verb

Etymology: Hindi & Urdu cā̃po, imperative of cā̃pnā to press, massage

Date: 1762

1 archaic : massage
2 a : to wash (as the hair) with soap and water or with a special preparation b : to wash the hair of

— sham·poo·er noun