Bewray is an old English verb meaning to reveal, disclose, or make known. In biblical English it may also carry the sense of exposing or betraying something, depending on the context.
The word occurs in passages concerning disclosure or betrayal. In Proverbs 29:24, the Revised Version uses “uttereth” in place of “bewray,” showing that the older term can mean to reveal or make known.
Bewray is an older English expression equivalent in some contexts to “betray.” Its use reflects earlier English vocabulary found in traditional Bible translations.