Sentence:  After <WSD>retrenching</WSD> itself in scholarship and literary imagination, Orientalism has moved on to conquer film, television and CD-ROMs. Nowadays, the subject of Orientalism is not limited to what is conventionally seen as the 'Orient' but also includes Europe, the home of its origins, itself. 
Meaning of the word marked with <WSD> tags:  To take up a new defensive position.