In Egypt, a unit of dry capacity, = 8.25 liters (about 7.49 U.S. dry quarts). In the 19ᵗʰ century, about 7.64 liters. Also romanized as rubc, roub, rab'a, and roubouh.
Not to be confused with the smaller rubca.
Socrates Spiro Bey.
An English-Arabic Vocabulary of the Modern and Colloquial Arabic of Egypt. 3rd edition.
Cairo: Elias’ Modern Press, 1929.
Page xi.
Saâdeddine Bencheneb.
Mesures et poids actullement en usage en Egypte.
Bulletin des études arabes, vol. 12, page 106 (Sept-Dec 1952.)
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