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Itself

//ɪtˈsɛlf// pron

Pronoun

1
it; A thing as the object of a verb or preposition that also appears as the subject neuter, personal, pronoun, reflexive, singular, third-person
"When the opportunity presented itself, no feasible course of action suggested itself (to us)."
2
it; used to intensify the subject, especially to emphasize that it is the only participant in the predicate emphatic, neuter, personal, pronoun, singular, third-person
"The door itself is quite heavy."
3
it; used to refer back to an earlier subject archaic, emphatic, neuter, personal, pronoun, singular, third-person
"The oil by degrees gets covered with a curdy mass, which after some time settles to the bottom, while itself becomes limpid and colorless."

From Middle English hit-self, equivalent to it + -self.

Unscramble this word: itself