1. The overall condition of an organism at a given time.
2. Soundness, especially of body or mind; freedom from disease or abnormality.
3. A condition of optimal well-being: concerned about the ecological health of the area.
4. A wish for someone's good health, often expressed as a toast.
[Middle English helthe, from Old English hǣlth; see kailo- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.