a. Any of numerous plant diseases resulting in sudden conspicuous wilting and dying of affected parts, especially young, growing tissues.
b. The condition or causative agent, such as a bacterium, fungus, or virus, that results in blight.
a. An agent or action that harms or ruins the value or success of something: "the heavy-handed, moralistic parenting that was the blight of the traditional family" (Theodore Roszack).
b. A condition or result of harmful or ruinous action: policies that lifted the city from economic blight.
v. blight·ed, blight·ing, blights
1. To cause (a plant, for example) to undergo blight.
2. To have a deleterious effect on; ruin. See Synonyms at blast.
To suffer blight.
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.