גֵּרָה gêrâh (H1626)
a gerah or small weight (and coin)
1) gerah, a weight, a 20th part of a shekel, equal to the weight of 16 barley grains or 4 to 5 carob beans
from גָּרַר (H1641) (as in גֵּרָה (H1625)); properly, (like גַּרְגַּר (H1620)) a kernel (round as if scraped), i.e.