The term 'sit shiva, e.g.' refers to the Jewish mourning practice of sitting shiva, which is a seven-day period of intense mourning for a deceased family member. The crossword solution for this term is 'MOURN, ' which is an appropriate word to describe the practice of sitting shiva. During this period, mourners are expected to stay in their home and receive visitors who come to pay their respects. They also recite prayers and share stories about the deceased.