v. aid·ed, aid·ing, aids
To provide assistance, support, or relief to: aided the researchers in their discovery; aided the prisoners' attempt to escape.
To provide assistance, support, or relief: aided in the effort to improve services to the elderly.
1. The act or result of helping; assistance: gave aid to the enemy.
a. Something that provides help, support, or relief, such as money or supplies: sent medical aid to the region after the storm.
b. Something, such as a device, that provides improvement: visual aids such as slides.
a. An assistant or helper.
b. An aide or aide-de-camp.
4. A monetary payment to a feudal lord by a vassal in medieval England.
[Middle English aiden, from Old French aider, from Latin adiūtāre, frequentative of adiuvāre, to help : ad-, to; see ad- in the Appendix of Indo-European roots + iuvāre, to help.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.