Etymology of the English word hydrotherapy
the English word hydrotherapy
using the English prefix hydro-
derived from the English word therapy
derived from the New Latin word therapia (therapy)
derived from the Greek word therapeia, θεραπεία (attendance (specially, medical; cure); figuratively and collectively, domestics)
derived from the Greek word therapeuein, θεραπεύω
derived from the Greek word theraps