From Longman Dictionary of Contemporary Englishabnegationab‧ne‧ga‧tion /ˌæbnəˈɡeɪʃən/ noun [uncountable] formal LET/ALLOWwhen you do not allow yourself to have or do something that you want → self-denial
Examples from the Corpus
abnegation• In the ensuing confusion the Catholic community locally and nationally saw this as an abnegation of the 1944 Education Act.• If the Court holds fast to its abnegation of this traditional role, it could mark a sea change in federal-state relations.• The sticking point in faith for me was abnegation.Origin abnegation (1500-1600) Late Latin abnegatio, from Latin abnegare “to refuse”, from ab- “away” + negare “to deny” 