tr.v. as·sert·ed, as·sert·ing, as·sertsIdiom:
1. To state or express positively; affirm: asserted his innocence.
2. To defend or maintain (one's rights, for example).
3. To put into action boldly; employ or demonstrate: asserted her independence.
To act boldly or forcefully, especially in defending one's rights or stating an opinion.
[Latin asserere, assert- : ad-, ad- + serere, to join; see ser-2 in the Appendix of Indo-European roots.]
as·serta·ble, as·serti·ble adj.
as·serter, as·sertor n.
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.