Betrayed a cause; betray one's spouse.
He betrayed my trust in him.
Her hollow laugh betrayed her contempt for the idea.
The house betrays its age.
Betray a secret.
His face betrays his fear.
An example of betray is when you cheat on your spouse.
An example of betray is when you tell secrets and betray trust.
An example of betray is when you sneeze and your enemy is then able to find you.
Betray one's country.
Origin of betray
- Middle English bitrayen bi- be- trayen to betray (from Old French trair) (from Latin trādere to hand over tradition)
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English betrayen, betraien, equivalent to be- + tray (“to betray”), from Old French traïr (“to commit treason, betray”), from Latin trādere, present active infinitive of trādō (“deliver, give over”, verb). In some senses, merged with or influenced by Middle English bewraien, bewreyen (“to reveal, divulge”), see bewray. Compare also traitor, treason, tradition.