Nonstandard. themselves: The kids began laughing at themself.Everyone who got the right answer can congratulate themself.The teacher introduced themself to the class.
a reflexive form of singular they, as used to refer to a nonbinary or gender-nonconforming person: Chris only posts memes that they created themself.
However, when themself is being used as part of a set of pronouns (including they, their, and them ) that refer back to a nonbinary or gender-nonconforming individual, it is a grammatical option to express reflexive meaning. Neither plural themselves nor gendered himself or herself completely suffice in this context. The grammaticality of nonbinary singular themself in this paradigm follows logically from the acceptability of singular they in this function: Andi is learning to put themself first, and prioritize their own happiness and mental health. See also they.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use themself in a sentence
No one should resign themself to a lifetime of chronic ill-health.
And when mass was done the king and the queen opened the letters privily by themself.Le Morte D'Arthur, Volume II (of II) | Thomas Malory
Then when they beheld the great multitude of people that they had slain, they held themself great sinners.Le Morte D'Arthur, Volume II (of II) | Thomas Malory
And in hete of the sonne wery wayfarynge and trauelynge men haue lykynge to have reste and to hele themself in the shadow.The Old English Herbals | Eleanour Sinclair Rohde
I'm not one o' these kind o' people that'd keep a joke to themself just because the joke was on them.Gullible's Travels, Etc. | Ring W. Lardner
It's about two merry, sensible girls who found themself obliged to earn their own living.Joyce's Investments | Fannie E. Newberry