The term 'LAST WIFE OF BLUEBEARD' can be summarized by the crossword solution FATA, which is an acronym for 'Fatal Attraction Theory of Aging'. This theory suggests that people are attracted to partners who are similar in age to themselves, and that this attraction is a major factor in determining the longevity of a relationship. The term is derived from the story of Bluebeard, a wealthy nobleman who married several women in succession, only to have them all die mysteriously. The last wife of Bluebeard was the one who ultimately discovered his dark secret and escaped with her life.