Reflexive pronouns are treated in this guide as a subset of personal pronouns. (Some other writers treat them as a separate type of pronoun.) Reflexive pronouns are the words we use to refer back to a noun or pronoun previously mentioned in the sentence. If we say 'John hit him', we presume that the victim of the assault was a second person, other than John. If, on the other hand, we say 'John hit himself', we presume that he has had an accident.
Singular reflexive pronouns end in -self, like myself, herself and itself; plural ones, like themselves, yourselves and ourselves end in -selves. These suffixes are added to the relevant personal pronoun in either the objective (him- and them-) or possessive forms (my-, your- and our-). Two (it- and her-) are ambiguous. Note that it is regarded as a mistake in formal English to say '
or ' hisself', though both are normal in some dialects of spoken British English.