[be.tray] vb [ME, fr. be- + trayen to betray, fr. OF trair, fr. L tradere--more at traitor] vt (13c) 1: to lead astray; esp: seduce
2: to deliver to an enemy by treachery
3: to fail or desert esp. in time of need
4. a: to reveal unintentionally b: show, indicate c: to disclose in violation of confidence ~ vi: to prove false syn see reveal -- be.tray.al n -- be.tray.er n