betraying

To deliver into the hands of an enemy by treachery or fraud, in violation of trust; to give up treacherously or faithlessly.

“an officer betrayed the city”

To prove faithless or treacherous to, as to a trust or one who trusts; to be false to; to deceive.

“My eyes have been betraying me since I turned sixty.”

To violate the confidence of, by disclosing a secret, or that which one is bound in honor not to make known.

To disclose or indicate, for example something which prudence would conceal; to reveal unintentionally.

“Though he had lived in England for many years, a faint accent betrayed his Swedish origin.”

To mislead; to expose to inconvenience not foreseen; to lead into error or sin.

To lead astray; to seduce (as under promise of marriage) and then abandon.

Betrayal