/ əˈbet; NAmE / verb
( -tt- ) [ vn ] to help or encourage sb to do sth wrong :
He was abetted in the deception by his wife.
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IDIOMS
see aid verb
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WORD ORIGIN
late Middle English (in the sense urge to do something good or bad ): from Old French abeter , from a- (from Latin ad to, at) + beter hound, urge on.