Sentence:  Meanwhile Nanny Broome was recovering from her initial panic and seemed anxious to make up for any kudos she might have <WSD>lost</WSD>, by exerting her personality to the utmost. She took the policeman's helmet and placed it on a chair, and unfolded his tunic to shake it and fold it up again for him. 
Meaning of the word marked with <WSD> tags:  To cause (something) to cease to be in one's possession or capability due to unfortunate or unknown circumstances, events or reasons.