transitive verb.
To give up (rights or a claim, for example); renounce.
transitive verb.
To deny (something) to oneself.
The Century Dictionary and Cyclopedia
To deny (anything) to one's self; renounce; give up or surrender.
the GNU version of the Collaborative International Dictionary of English
transitive verb.
To deny and reject; to abjure.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
verb.
deny oneself (something); restrain, especially from indulging in some pleasure
verb.
deny or renounce
verb.
surrender (power or a position)
Word Usage
"As we call on science to explain, elaborate, and justify issues in civil and personal life, we need to be careful that we don't abnegate our responsibility to monitor the effects of this intervention."