1. Physical or psychological damage or injury: The storm did great harm to the crops.
2. Immoral or unjust effects: They made a mistake and meant no harm.
tr.v. harmed, harm·ing, harms
To do harm to: pollutants that harm the environment; people who were harmed in the accident.
[Middle English, from Old English hearm.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.