Carnuate (Lat. carruca), originally an amount of land such as one team of eight oxen could plough in a season. It varied in size from 80 to 144 acres. The carucage was a tax on the carucate, first imposed by Richard I. in 1198.
Carnuate
Chambers's Encyclopaedia, Volume 2: Beaugency to Cataract, p. 801
Source scan(s): p. 0818