self-sacrifice
noun
[ ˌsɛlfˈsakrɪfʌɪs ]
• the giving up of one's own interests or wishes in order to help others or advance a cause.
• "years of sheer hard work and dedicated self-sacrifice"
Similar:
self-denial,
selflessness,
unselfishness,
altruism,
self-discipline,
asceticism,
abnegation,
self-abnegation,
self-deprivation,
abstemiousness,
abstinence,
moderation,
austerity,
temperance,
abstention,
renunciation,
celibacy,
chastity,
teetotalism,
continence,