themself
/ðəmˈself/pronoun
third person singular
- used instead of 'himself' or 'herself' to refer to a person of unspecified sex（指性别不确定的人）他自己; 她自己：
the casual observer might easily think themself back in 1945.
漫不经心的观察者可能很容易就把自己的思绪带回1945年。
USAGE
The standard reflexive form corresponding to they and them is themselves, as in they can do it themselves. The singular form themself, first recorded in the 14th century, has re-emerged in recent years corresponding to the singular gender-neutral use of they, as in this is the first step in helping someone to help themself. The form is not widely accepted in standard English, however. For more details, see usage at THEY.