rbʕ / Semitic roots
rbʕ
Common Semitic *ʔarbaʕ-, four, Central Semitic noun
1. arroba, from Arabic ar-rubʕ, the quarter.
2. rabi, Rabi, from Arabic rabīʕ, fourth part, spring.
3. rubaiyat, from Arabic rubāʕī, quatrain, from rubāʕ, by fours.
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