[thuh m-self, th em-]
pronoun Nonstandard.
  1. themselves:The kids began laughing at themself. Everyone who got the right answer can congratulate themself.The teacher introduced themself to the class.

Origin of themself

Usage note

Themself has a long history of use in English and more recently has been adopted as the reflexive pronoun referring back to a singular gender-neutral antecedent, similar to the use of singular they . However, the pronoun themself is not considered to be standard English. A more acceptable alternative is the plural pronoun themselves , though its use with a singular antecedent is rejected as ungrammatical by some people. See also they. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for themself

Historical Examples of themself