Sentence:  As it was clear that he was a <WSD>choleric</WSD> fellow in some respects, Mr Swiveller was relieved to find him in such good humour, and, to encourage him in it, smiled himself. 
Meaning of the word marked with <WSD> tags:  ("according to theories of the four humours or temperaments") Having a temperament characterized by an excess of choler; easily becoming angry.