abnegate
v.v. to give up something you want or need, especially something that is very important to you. It is a formal word for making a big sacrifice.
v. to renounce or give up something, especially a desire or a right. Often implies a voluntary and complete sacrifice of personal interests for a higher cause.
He decided to abnegate his own comfort to help the family.
The monk chose to abnegate his former life of luxury in order to live a life of strict discipline.
By abnegating her own ambitions, she allowed her younger colleagues to rise through the ranks, eventually leading to a more diverse and innovative leadership team.
First attested in 1657. * Perhaps from Latin abnegō (“to refuse, reject”) from ab (“away from”) + negō (“to deny”), * Alternatively, perhaps a back-formation from abnegation.