1. A full or completely adequate amount or supply: plenty of time.
2. A large quantity or amount; an abundance: "Awards and honors came to her in plenty" (Joyce Carol Oates).
3. A condition of general abundance or prosperity: "fruitful regions gladdened by plenty and lulled by peace!" (Samuel Johnson).
Sufficiently; very: It's plenty hot.
Plentiful; abundant: "Ships were then not so plenty in those waters as now" (Herman Melville).
[Middle English, from Old French plente, from Latin plēnitās, from plēnus, full; see pelə-1 in the Appendix of Indo-European roots.]
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.