From Laura Wattenberg’s always-thoughtful Baby Name blog: Quick question: which of these names is not like the others? Molly, Elsie, Sadie, Lucy At first glance, the four make a natural style group. They’re all cozy, old-fashioned girls’ names that have returned to popularity in the 21st Century. But Molly, Sadie and Millie are traditional nicknames. Lucy is not. Lucy is the English form of Lucia,