1. Easter Monday, so called from the severity of that day in 1360, which was so unusual that many of Edward III.'s soldiers, then before Paris, died from the cold. Stow. [ 1913 Webster ]

Then it was not for nothing that my nose fell a bleeding on Black Monday last. Shak. [ 1913 Webster ]

2. The first Monday after the holidays; -- so called by English schoolboys. Halliwell. [ 1913 Webster ]