ab·ne·gate 
(ăbnĭ-gāt′)
(ăbnĭ-gāt′)tr.v. ab·ne·gat·ed, ab·ne·gat·ing, ab·ne·gates
1. To give up (rights or a claim, for example); renounce.
2. To deny (something) to oneself: The minister abnegated the luxuries of life.
[Latin abnegāre, abnegāt-, to refuse : ab-, away; see AB-1 + negāre, to deny; see ne in the Appendix of Indo-European roots.]
abne·ga′tor n.