a bean, probably of the carob tree, the smallest weight, and also the smallest piece of money, among the Hebrews, equal to the twentieth part of a shekel ( Exodus 30:13 ; Leviticus 27:25 ; Numbers 3:47 ). This word came into use in the same way as our word "grain," from a grain of wheat.
ge'-ra (gerah, "grain" or "kernel"):
See WEIGHTS AND MEASURES.
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