v. ex·pound·ed, ex·pound·ing, ex·pounds
1. To explain in detail; elucidate: She expounded her theory on the origin of the conflict.
2. To make known or set forth; present: "In the 1956 campaign he cheerfully expounded views that had gravely disturbed him four years earlier" (Helen Sasson).
To make a detailed statement: The professor was expounding on a favorite topic.
[Middle English expounden, from Anglo-Norman espoundre, from Latin expōnere : ex-, ex- + pōnere, to place; see apo- in the Appendix of Indo-European roots.]
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.