1. A dense growth of shrubs or underbrush; a copse.
2. Something suggestive of a dense growth of plants, as in impenetrability or thickness: "the thicket of unreality which stands between us and the facts of life" (Daniel J. Boorstin).
[Old English thiccet, from thicce, thick; see THICK.]
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.