lammas day n commemorates Saint Peter's miraculous deliverance from prison; a quarter day in Scotland; a harvest festival in England Synonym(s) Lammas Lammas Day August 1
News & Articles lammas day Turning the Corner: Tuesday Marks Summer's Midpoint This past Thursday (Aug. 1) was Lammas Day, whose name is derived from the Old English "loaf-mass," because it was once observed as a harvest festival. Aug. 5, 2013 - SPACE.com via Yahoo! News