grey divorce
... that the increasing overall divorce rate is primarily in elderly, long-married couples, a phenomenon dubbed "grey divorce"?
... that the increasing overall <a href="./Divorce" id="mwEOY" rel="mw:WikiLink" title="Divorce">divorce</a> rate is primarily in elderly, long-married couples, a phenomenon dubbed "<b id="mwEOc"><a href="./Grey_divorce" id="mwEOg" rel="mw:WikiLink" title="Grey divorce">grey divorce</a></b>"?