effete

Concise Oxford English Dictionary © 2008 Oxford University Press:
effete /ɪˈfiːt/

▶adjective

• 1 affected, over-refined, and ineffectual.

  ■ (of a man) weak or effeminate.

• 2 no longer capable of effective action.

– derivatives
effetely adverb,
effeteness noun.

– origin C17: from L. effetus ‘worn out by bearing young’; rel. to fetus.