defeated

Concise Oxford English Dictionary © 2008 Oxford University Press:
defeat/dɪˈfiːt/

▶verb

• 1 win a victory over.

• 2 prevent the achievement of (an aim): this defeats the object of the exercise.

  ■ be too difficult for.

  ■ Law make null and void.

▶noun an instance of defeating or being defeated.

– derivatives
defeated adjective,
defeatedly adverb.

– origin ME: from OFr. desfait ‘undone’, past part. of desfaire, from med. L. disfacere ‘undo’.