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tr.v. a·bet·ted, a·bet·ting, a·bets
1. To approve, encourage, and support (an action or a plan of action); urge and help on.
2. To urge, encourage, or help (a person): abetted the thief in robbing the bank.

[Middle English abetten, from Old French abeter, to entice : a-, to (from Latin ad-; see ad-) + beter, to bait; see bheid- in Indo-European roots.]

a·bet′ment n.
a·bet′tor, a·bet′ter n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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noun help, backing, support, aid, assistance, encouragement, abetment, abettal They see blasphemy - and the abetting of it - as a most serious crime.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
References in classic literature ?
I wish to set before you, honourably, the exact consequences - so far as they are within my knowledge - of your abetting him in this appeal.'
You may possibly have some idea, Miss Trotwood, of abetting him in his running away, and in his complaints to you.
With that he took Mrs Varden's hand again, and having pressed it to his lips with the highflown gallantry of the day--a little burlesqued to render it the more striking in the good lady's unaccustomed eyes--proceeded in the same strain of mingled sophistry, cajolery, and flattery, to entreat that her utmost influence might be exerted to restrain her husband and daughter from any further promotion of Edward's suit to Miss Haredale, and from aiding or abetting either party in any way.
Washington, and new methods of aiding and abetting good King George.
I pray you by Jove and Themis, who is the beginning and the end of councils, [do not] hold back, my friends, and leave me singlehanded {18}--unless it be that my brave father Ulysses did some wrong to the Achaeans which you would now avenge on me, by aiding and abetting these suitors.
As I had anticipated, when I came to a conclusion, and consequently allowed her an opportunity of saying a few words, she affected to be extremely shocked and surprised at hearing of the nature of her master's pursuits, and reproached me in terms of the most vehement and virtuous indignation for incurring the guilt of abetting them, even though I had done so from the very excusable motive of saving my own life.
TOBA TEK SINGH -- The Gojra City police on Tuesday registered a case against Pakistan Tehreek-i-Insaf (PTI) MPA Chaudhry Bilal Asghar Warraich for abetting the suspects in a double murder case.
BANKING AND CREDIT NEWS-July 10, 2019--US report says AXA could be abetting war crimes in Israel
M2 EQUITYBITES-July 10, 2019--US report says AXA could be abetting war crimes in Israel
Global Banking News-July 10, 2019--US report says AXA could be abetting war crimes in Israel
A Karmo Grade I Area Court, Abuja, on Friday ordered that a 24-year-old man, Charles Okon, accused of aiding and abetting an offender, be remanded in prison custody, pending his sentencing.
Samad claimed trial today to three charges of abetting husband Datuk Seri Bung Moktar Radin in obtaining bribes amounting to RM2.8 million in exchange for securing a RM150 million investment for Federal Land Consolidation and Rehabilitation Authority (Felcra).