Doomsday is the last day of existence for the world. In Christianity, doomsday is the day of the Last Judgement. Doomsday is also used as a modifier to indicate a dangerous or disastrous time. The word doomsday is derived from the Old English words dōmes meaning doom and dæg which means day.
Domesday is a proper noun that is used to describe a certain document known as the Domesday Book. The Domesday Book is an enormous survey that was ordered by William I in 1085. This survey enumerated all the wealth in England and who owned the wealth in order to assess taxes. Domesday is the Middle English spelling of the word doomsday, and is pronounced as doomsday.
Examples
“The doomsday prophets said that Greenland could never get an exit deal that would be as beneficial as the conditions under EC membership.” (The Daily Express)
Now, in a new $62 million, 5-year program, the network of doomsday machines is expanding to simulate hurricanes and tornadoes and is joining forces with computer modeling to study how things too big for a physical test—such as nuclear reactors or even an entire city—will weather what Mother Nature throws at them. (Science Magazine)
It raises the question: What’s to stop a newly formed league of climate-agnostic attorneys general, emboldened by the strategies of their green colleagues, from prosecuting those like Mr. Gore, who have become rich off of fantastical doomsday predictions? (The Washington Times)
If the Domesday Book, an 11th-century survey of England, was commissioned to raise funds for government, Aadhaar’s most useful purpose is to help their disbursement. (The Economist)
There’s been a settlement in Leintwardine since the Roman era when it was called Bravonium and the village warranted a mention in the Domesday Book when it was referred to as Lenteurde. (The Ludlow and Tenbury Wells Advertiser)