Sacrifice

noun the act of renouncing or rejecting something, self-denial

• The monk's life was characterized by a strict abnegation of worldly pleasures.
• She practiced abnegation by giving up her favorite dessert for Lent.
• Dude, that level of abnegation is just crazy!
• In order to achieve success, one must practice abnegation of distractions and focus on their goals.

adjective showing willingness to sacrifice one's own desires or interests for the greater good

• The self-denying monk lived a life of austerity and simplicity.
• She's so self-denying, always putting others' needs before her own.
• I can't believe how self-denying he is, never even treating himself to a nice meal.
• Her self-denying attitude towards success held her back from reaching her full potential.