hydrotherapy vs hydropathy

hydrotherapy and hydropathy both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydrotherapy	Yes	No	No	No
hydropathy	Yes	No	No	No

As nouns, hydrotherapy and hydropathy are synonyms defined as:

hydrotherapy and hydropathy: the internal and external use of water in the treatment of disease

hydrotherapy (noun)	hydropathy (noun)
the internal and external use of water in the treatment of disease	the internal and external use of water in the treatment of disease