Sentence:  Miss Griffin was a model of propriety, and I am at a loss to imagine what the feelings of the virtuous woman would have been, if she had known, when she paraded us down the Hampstead Road two and two, that she was walking with a stately step at the head of <WSD>Polygamy</WSD> and Mahomedanism. 
Meaning of the word marked with <WSD> tags:  The condition of having more than one spouse or marriage partner at one time.