Domesday \Domes"day`\, n. A day of judgment. See Doomsday. [Obs.]

Domesday Book, the ancient record of the survey of most of the lands of England, made by order of William the Conqueror, about 1086. It consists of two volumes, a large folio and a quarto, and gives the proprietors' tenures, arable land, woodland, etc. [Written also Doomsday Book.]

Source: Webster's Revised Unabridged Dictionary (1913)