a. Lasting an indefinitely long time; enduring: an author's perennial popularity among children.
b. Appearing again and again or year after year; recurrent: a perennial contender for the championship. See Synonyms at continual.
2. Botany Living three or more years.
3. Lasting or active throughout the year: a perennial stream.
1. Botany A perennial plant.
2. Something that recurs or seems to recur on a yearly or continual basis: "that hardy perennial, the budget deficit" (David S. Broder).
[Latin perennis (per-, throughout; see PER- + annus, year; see at- in the Appendix of Indo-European roots) + -AL1.]
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.