v. dis·armed, dis·arm·ing, dis·arms
a. To divest of a weapon or weapons.
b. To deprive of the means of attack or defense; render harmless: "Have the courage to appear poor, and you disarm poverty of its sharpest sting" (Washington Irving).
a. To overcome or allay the suspicion, hostility, or antagonism of.
b. To win the confidence of.
1. To lay down arms.
2. To reduce or abolish armed forces.
[Middle English disarmen, from Old French desarmer : des-, dis- + armer, to arm (from Latin armāre, from arma, weapons; see ar- 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.