رِبْحٌ

and ↓ رَبَحٌ and ↓ رَبَاحٌ [all originally inf. ns.] Gain, or profit; (IAar, S, A, K, and Mgh in explanation of the first and last;) increase [obtained] in traffic; (TA;) excess, or surplus, [obtained,] above the capital [expended]; wherefore it is also termed شِفٌّ. (Ksh and Bd in explanation of the first in ii. 15.) [Hence,] ↓ البِرُّ خَيْرُ تِجَارَةٍ رَبَاحًا (tropical:) [Piety is the best traffic in respect of gain, or profit.] (A.)