Sentence:  Why, Warwick, canst thous speak against thy Liege, Whom thou obeyedst thirty and six years, And not <WSD>bewray</WSD> thy treason with a blush? 
Meaning of the word marked with <WSD> tags:  To reveal or disclose and show the presence or true character of, especially if unintentionally or incidentally, or else if perfidiously, prejudicially, or to one's discredit.