Why this word is great
BEWRAYER — [Noun] One who reveals or betrays a secret, a confidence, or a hidden truth. From Middle English bewrayer, from bewrayen (to accuse, reveal) + the agent suffix -er, with bewrayen itself from be- (an intensifying prefix) + Middle English wraien (to accuse), from Old English wrēgan (to accuse, impeach). Unlike an informer, which implies a deliberate, often transactional report to authorities, or a traitor, which denotes a profound breach of allegiance, a bewrayer is a vessel of subtler, often unintended disclosure. It is the unguarded glance that confirms an affair, the private letter left open on a desk, or the involuntary flush that answers a question before the lips can form a lie—the quiet, human machinery by which our hidden interiors insist on becoming known.