The Evil History of Dismal

In late antiquity, certain days each month, called “Egyptian days,” were regarded as inauspicious, probably as a relic of ancient Egyptian belief. By the Middle Ages, people took them to be anniversaries of the Biblical plagues in Egypt. There were 24 such days per year, and in Anglo-French they were called collectively dismal (from Latin dies mali, “evil days”), and this word was borrowed into Middle English. In time the “evil days” sense was forgotten and dismal was simply taken to mean “disastrous.” The noun dismal, meaning “swamp,” goes back to the 1700s when the marshy region in Virginia and North Carolina was named the Great Dismal Swamp.