Sentence:  It is not a medieval mental quirk or an attitude `` unnourished by sense '' to believe that husbands and wives should not be subjected to such a risk , or that such a possibility should not be permitted to endanger the confidentiality of the <WSD>marriage</WSD> relationship . 
Meaning of the word marked with <WSD> tags:  the state of being a married couple voluntarily joined for life (or until divorce)