Arrenitegleaning
Gathering the grain or fruit left in a field after the main harvest. In ancient Israel the law told landowners to leave the edges and the leftovers for the poor and the foreigner.
Leviticus 19:9-10 and Deuteronomy 24:19-21 tell farmers not to harvest to the very edges of the field and not to go back for what was dropped or forgotten, so that poor people and strangers could gather it. It was not a gift handed down at the owner's whim. It was part of how the field was worked.
The book of Ruth shows the practice in action: a poor widow gathers grain behind the reapers, and the landowner goes beyond what the law required by telling his workers to let some fall on purpose.