betrayal
UK: bɪˈtreɪəl | US: bɪˈtreɪəl
n. the act of betraying someone or something; treachery or deception.
n. the revelation of confidential information without permission.
The word betrayal traces back to the Latin tradere ("to hand over"), which evolved into Old French trair ("to betray"). The prefix be- intensified the sense of deception in Middle English. The suffix -al later standardized the noun form, encapsulating the act of betrayal. The term’s evolution reflects a shift from literal "handing over" to metaphorical treachery.
His betrayal of the team’s trust cost them the championship.
The novel explores themes of loyalty and betrayal in wartime.
She felt a deep sense of betrayal after discovering the lie.
The spy’s betrayal compromised national security.
Forgiveness after betrayal requires immense strength.