Both the name and its explanation, "a half shekel," are given in Ex. 38:26. The word properly means a "division," a "part." (R.V., "beka.")
The bekah, 10 gerahs, weighed about a quarter of an ounce (4.39 drams).
One hundred and ninety-two houses in the Mappalian district let to the New Carthaginians at the rate of one bekah a moon.