Yourself \Your*self"\, pron.; pl. Yourselves. [Your + self.]

An emphasized or reflexive form of the pronoun of the second person; -- used as a subject commonly with you; as, you yourself shall see it; also, alone in the predicate, either in the nominative or objective case; as, you have injured yourself.

Of which right now ye han yourselve heard. --Chaucer.

If yourselves are old, make it your cause. --Shak.

Why should you be so cruel to yourself ? --Milton.

The religious movement which you yourself, as well as I, so faithfully followed from first to last. --J. H. Newman.

Source: Webster's Revised Unabridged Dictionary (1913)