1. A unit of weight formerly used in Spanish-speaking countries, equal to about 11.3 kilograms (25 pounds). 2. A unit of weight formerly used in Portuguese-speaking countries, equal to about 14.4 kilograms (32 pounds). 3. A liquid measure formerly used in Spanish-speaking countries, having varying value but equal to about 16.2 liters (17 quarts) when used to measure wine.
ETYMOLOGY:
Spanish and Portuguese, both from Arabic ar-rub‘, the quarter (of a quintal) : al-, the + rub‘, quarter; see rbc in Appendix II.
-r
b
