Self-denial is an act of letting go of the self as with altruistic abstinence – the willingness to forgo personal pleasures or undergo personal trials in the pursuit of the increased good of another.

What is an example of self-denial?

the sacrifice of one's own desires; unselfishness. an act or instance of restraining or curbing one's desires: To reduce, one has to practice self-denial at the dinner table.

What is a self denying person?

adjective. Someone who is self-denying refuses to do or have things that they would like, either because they cannot afford them, or because they believe it is morally good for them not to do them or have them.