rood

1

In England, 10—20th century, a unit of land area, = 1210 square yards (approximately 1011.7 square meters). Originally a piece of land 1 rod wide and 40 rods long, a quarter of an acre.

2

In Scotland, a unit of land area, = 40 square falls = 13,690 square English feet, about 1271.84 square meters. But within a burgh, 20 square feet.

3

In Scotland, 17th century, as a measure of work done by masons or slaters, = 36 square ells, the same as a fall, about 342,25 square English feet.

Sources

OF THE ROOD OF WORKE

A Rood of land containes 240 Ells of measure: But a roode of worke, wrought by masons or sclaiters, containes but 36 ells: that is, if any piece of worke bee found to bee 18 Elles in length, and 2 Ells in breadth, it makes a Roode.

...

A Roode of land within Burgh, is esteemed of old to bee 20 foote: that is, 5 foote in length, and 4 foote in breadth.

Hunter (1624), page 6.