mudd

A widespread Islamic unit. It derives from the Roman modius.

1

In Syria , 20^th century, a unit of capacity. In Chaba, = 26 liters; in Salkhad and Soueida, = 27.5 liters.

United Nations, 1966. Technical Conversion Factors…, 1972, page 315.

2

In Sudan , 20^th century, a unit of capacity, the Berber mudd = 8 tasa = 10 2/3 ratl, about 4.79 liters.

1. H[arald] F[rançois] S[aphir] Amery.
English-Arabic Vocabulary for the Use of Officials of the Anglo-Egyptian Sudan, compiled in the Intelligence Department of the Egyptian Army.
Cairo: Al-Mokattam Printing Office, 1905.

Page 430. There is, however, an internal inconsistency in Amery’s data. He says this mudd = 8 tasa of 1½ ratl (i.e., 12 ratl), but also that it = 10 2/3 ratl. The metric equivalent given above is based on the 10 2/3 equivalent.

sources

When Maslamah approached Constantinople, he ordered every horseman to load two mudds of food on the back of his horse so that he might bring it to Constantinople.

David Stephan Powers, trans. and annotator.
The History of al-Tabari.
Volume 24. The Empire in Transition.
Bibliotheca Persica.
Albany, NY: State University of New York Press, circa 1995.
Describing the siege of Constantinople in 1315 ce.