n. pl. hy·drop·a·thies
Internal and external use of water as a therapeutic treatment for all forms of disease.
hy′dro·pathic (hī′drə-păthĭk), hy′dro·pathi·cal adj.
hy·dropa·thist, hydro·path′ n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.