Sentence:  1893, She explained that she was the commissionaire's wife, who did the <WSD>charing</WSD>, and I gave her the order for the coffee. — Arthur Conan Doyle, ‘The Naval Treaty' (Norton 2005, p.677) 
Meaning of the word marked with <WSD> tags:  To work, especially to do housework; to work by the day, without being a regularly hired servant.