"While . . busy search was diligently applied and put in execution, Humphrey Banaster (were it more for fear of loss of life and goods, or attracted and provoked by the avaricious desire of the thousand pounds) he bewrayed his guest and master to John Mitton, then Sheriff of Shropshire, ..."
1890, The Times, 16 June, page 8, col. A
I fear that if I was to attempt to detain you at length my speech would bewray me, and you would discover I was not that master of professional allusions which you might expect me to be.
puhekieltä To disclose or reveal (usually with reference to a person's identity or true character) perfidiously, prejudicially, or to one's discredit or harm; betray; expose.
1916, John Lyly, Euphues:
But to put you out of doubt that my wits were not all this while a wool-gathering, I was debating with myself whether in love it were better to be constant, bewraying all the counsels, or secret, being ready every hour to flinch.
puhekieltä To reveal or disclose unintentionally or incidentally; show the presence or true character of; show or makevisible.