self-denial

noun

act of letting go of the self as with altruistic abstinence

Wiktionary

noun

Etymology: Etymology tree Proto-Indo-European *swé? Proto-Indo-European *selbʰ-der. Proto-Germanic *selbaz Old English self Old English self- Middle English self- English self- English denial English self-denial From self- + denial.

Action that sacrifices one's own benefit for the good of others.