The Sindarin word for the Númenórean measure also called a lár. The name comes from the Elvish root meaning 'stop' or 'pause', because a marching army would usually pause to rest after travelling a distance of one daur.

The daur was reckoned based on the Númenórean measure of the ranga, which corresponded to the length of a single stride. The Dúnedain as a people were notably tall, and this stride length was correspondingly long, equating to thirty-eight inches (or 0.97 metres). The daur, the longest unit on the Númenórean system of measurement, represented a distance of five thousand of these rangar or strides. In modern terms that would correspond to a distance of 5,277 yards, 2 feet and 4 inches (or exactly 4,826 metres). This would make a daur only fractionally less than three miles in length, and for this reason it is usually translated as a 'league' (which also typically equates to three miles).

A standard day's march for an army of the Dúnedain would cover eight of these leagues, resting briefly after each (and it was this rest-stop that gave the daur its name). So, at normal pace, such an army would expect to march for twenty-four miles (nearly thirty-nine kilometres) each day, but they were capable of forcing a greater pace than this for a time when haste was needed.