The Davoch, Davach or Daugh is an ancient Scottish land measurement. All of these terms are cognate with modern Scottish Gaelic Dabhach. The word Dabh or Damh means an ox (cf oxgang/Damh-imir), but Dabhach can also refer to a `tub`, so may indicate productivity. It was called the arachor in the Lennox. It is thought that the measurement is of Pi.....