play false

• Устаревшее выражение, означающее действовать обманчиво, предавать чьё-то доверие или быть нелояльным, часто в отношениях или партнёрстве.

An archaic expression meaning to act deceitfully, betray someone's trust, or be disloyal, often in a relationship or partnership.

1. Betray or deceiveC1formalbritish

   To act dishonestly or treacherously towards someone; to betray trust.

   Предать или обмануть

   • He played false with his business partner by hiding the profits.
   • She felt her friend had played false when the secret was revealed.
   • The knight was accused of playing false to his lord.