辞する
1
to take one's leave;to excuse oneself;to leave;to depart
私はその職を辞するよう彼を説得した。
I persuaded him to resign the post.
2
to resign (from);to step down;to leave (one's position);to quit
3
to decline;to turn down;to refuse
4
to do unwaveringly;to be prepared to do;to not mind doing
in the negative as ...を（も）辞さない, ...を（も）辞せず, etc.
See also:
辞さない (じさない)