to provide support for or relief to; help:
to aid the homeless victims of the fire.
to promote the progress or accomplishment of; facilitate.
to give help or assistance.
help or support; assistance.
a person or thing that aids or furnishes assistance; helper; auxiliary.
aids, Manège.

Also called natural aids. the means by which a rider communicates with and controls a horse, as the hands, legs, voice, and shifts in weight.
Also called artificial aids. the devices by means of which a rider increases control of a horse, as spurs, whip, and martingale.

a payment made by feudal vassals to their lord on special occasions.
English History. (after 1066) any of several revenues received by a king in the Middle Ages from his vassals and other subjects, limited by the Magna Charta to specified occasions.
Contemporary Examples

The second proposition: The U.S. is going to conduct its own investigation into who, if anyone, in Pakistan was aiding bin Laden.
Obama Puts the Squeeze on Pakistan’s Zardari John Barry May 8, 2011

Her Tweets and Facebook posts made news, aiding her promotions for books and a reality TV show.
The Palin Implosion John Avlon March 16, 2011

She is still the best advocate Obama has for aiding the embattled middle class.
Elizabeth Warren’s GOP Charm Offensive Eleanor Clift, Daniel Stone March 2, 2011

“This is aiding and abetting criminal activity,” charges campaign finance attorney Dan Backer, counsel for Stop Hillary.
Hillary’s SuperPAC War Proves Yet Again That Campaign Finance Needs a Fix Michelle Cottle January 27, 2014

A number of politicians and commentators have accused the administration of lacking urgency in aiding that city.
Conservative Outlets Push Old Video of Barack Obama Talking About the Poor Howard Kurtz October 2, 2012

Historical Examples

Linseed tea in its purest form is an excellent accessory in aiding to relieve such as are afflicted with gout, gravel, etc.
A Plain Cookery Book for the Working Classes Charles Elm Francatelli

What will your father say if he finds me aiding and abetting?
Weighed and Wanting George MacDonald

All this was aiding Johnny, though it is to be doubted whether the otters knew the value of their antics.
The Shadow Passes Roy J. Snell

When he gave, he gave all that he had; he had no notion of aiding or assisting.
Sir Brook Fossbrooke, Volume II. Charles James Lever

Was she still in prison, and if so, what would be her punishment for aiding him to escape from prison?
Clotelle William Wells Brown

to give support to (someone to do something); help or assist
(transitive) to assist financially
assistance; help; support
a person, device, etc, that helps or assists: a teaching aid
(mountaineering) Also artificial aid. any of various devices such as piton or nut when used as a direct help in the ascent
(in medieval Europe; in England after 1066) a feudal payment made to the king or any lord by his vassals, usually on certain occasions such as the marriage of a daughter or the knighting of an eldest son
(Brit, informal) in aid of, in support of; for the purpose of
combining form
denoting a charitable organization or function that raises money for a cause: Band Aid, Ferryaid
acute infectious disease
artificial insemination (by) donor: former name for Donor Insemination (DI)

early 15c., “wartime tax,” also “help, support, assistance,” from Old French aide, earlier aiudha “aid, help, assistance” (9c.), from Late Latin adjuta, from fem. past participle of Latin adiuvare (past participle adiutus) “to give help to,” from ad- “to” (see ad-) + iuvare “to help” (see adjutant). Meaning “thing by which assistance is given” is recorded from c.1600. Meaning “material help given by one country to another” is from 1940.

c.1400, “to assist, help,” from Old French aidier “help, assistance,” from Latin adiutare, frequentative of adiuvare (past participle adiutus) “give help to” (see adjutant). Related: Aided; aiding.

AID abbr.
artificial insemination donor
Agency for International Development


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