The story
- Prakrit𑀘𑀁𑀧𑀇 (caṃpaï)
- Hindiचाँपना (cā̃pnā)
- Hindiचाँपो (cā̃po)
- English todayshampoo
From Hindi चाँपो (cā̃po) / चांपो (cāmpo), imperative form of चाँपना (cā̃pnā) / चांपना (cāmpnā, “to press, knead”), mid 18th c.
Etymology from Wiktionary, CC BY-SA 4.0.