'Thyself' definitions:

Definition of 'Thyself'

From: GCIDE
  • Thyself \Thy*self"\, pron. An emphasized form of the personal pronoun of the second person; -- used as a subject commonly with thou; as, thou thyself shalt go; that is, thou shalt go, and no other. It is sometimes used, especially in the predicate, without thou, and in the nominative as well as in the objective case. [1913 Webster]
  • Thyself shalt see the act. --Shak. [1913 Webster]
  • Ere I do thee, thou to thyself wast cruel. --Milton. [1913 Webster]