yaめるmeru
1.

To bring an end to an activity or commitment that one has been engaged in, particularly in the context of employment or a position of responsibility.

2.

To make a decision to no longer pursue a planned course of action, often reflecting a change of mind or circumstances that leads to canceling previously intended goals.

3.

To officially withdraw from a role, position, or organization, often signifying a formal exit due to various personal or professional reasons.

Example:

彼はやめるほか仕方がない。