e·qui·pon·der·ate (ē′kwə-pŏndə-rāt′, ĕk′wə-)
tr.v. e·qui·pon·der·at·ed, e·qui·pon·der·at·ing, e·qui·pon·der·ates
1. To counterbalance.
2. To give equal balance or weight to.
[Medieval Latin aequiponderāre, aequiponderāt- : Latin aequi-, equi- + Latin ponderāre, to weigh; see (s)pen- 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.