bewray

kavaltaa, näyttää, paljastaa puhekieltä To expose a deception.
puhekieltä To accuse; malign; speak evil of.
puhekieltä To reveal; divulge; make known; declare; inform.
puhekieltä To expose a person, rat someone out.
1850, The Gentleman's magazine: Volume 189:

"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, ..."

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.

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.

Should we be silent and not speak, our raiment and state of bodies would bewray what life we have led since thy exile.

His very speeches bewray the man – intensely human, frank and single-hearted