つと努tsutoめるmeru
1.
To take on a responsibility or role and carry it out with diligence and commitment, often in the context of a job or organizational duty.
2.
To put in earnest effort towards achieving a specific goal or fulfilling a task, showing perseverance and dedication in the process.
3.
To actively strive to avoid failure in a particular endeavor, demonstrating a strong willingness to exert oneself in challenging situations.
Example:
お手伝いさんたちは主人の命令を実行しようと努めた。