rbʿ
Common Semitic *ʾarbaʿ-, four, and Central Semitic noun *rubʿ-, fourth, quarter.
1. Common Semitic
*ʾarbaʿ-, four.
Rabi, from
Arabic rabīʿ, spring, fourth.
2. Central Semitic noun
*rubʿ-, fourth, quarter.
arroba, from
Arabic ar-rubʿ, the quarter.
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Universalium.
2010.