an emphatic appositive oforShe herself wrote the letter.
a reflexive form ofShe supports herself.
(used in absolute constructions): Herself still only a child, she had to take care of her four younger brothers and sisters.
(used as the object of a preposition or as the direct or indirect object of a verb): She gave herself a facial massage. He asked her for a picture of herself.
(used in comparisons after as or than): She found out that the others were even more nervous than herself.
her normal or customary self: After a few weeks of rest, she will be herself again.