Definition of "itself"

itself

/ɪtˈsɛlf/

pronoun
the third person singular, neuter, personal pronoun, the reflexive form of it, masculine himself, feminine herself, gender-neutral themself, plural themselves
1. (reflexive) it; A thing as the object of a verb or preposition that also appears as the subject
2. (emphatic) it; used to intensify the subject, especially to emphasize that it is the only participant in the predicate
  Quotations
  Beautie alone is a ſoveraigne remedy againſt feare,griefe,and all melancholy fits; a charm,as Peter de la Seine and many other writers affirme,a banquet it ſelfe;he gives inſtance in diſcontented Menelaus that was ſo often freed by Helenas faire face: and hTully, 3 Tusc. cites Epicurus as a chiefe patron of this Tenent.
  1638, Democritus Junior for Henry Cripps, partition II, section 2, member 6, subsection iv, page 298
3. (emphatic, archaic) it; used to refer back to an earlier subject
  Quotations
  The oil by degrees gets covered with a curdy mass, which after some time settles to the bottom, while itself becomes limpid and colorless.
  1842, Andrew Ure, A Dictionary of Arts, Manufactures and Mines