'Folly' in the Bible

The man, the master of the house, went out to them, and said to them, "No, my brothers, please don't act so wickedly; since this man is come into my house, don't do this folly.

Behold, here is my virgin daughter and his concubine. I will bring them out now. Humble them, and do with them what seems good to you; but to this man don't do any such folly."

I took my concubine, and cut her in pieces, and sent her throughout all the country of the inheritance of Israel; for they have committed lewdness and folly in Israel.

and we will take ten men of one hundred throughout all the tribes of Israel, and one hundred of one thousand, and a thousand out of ten thousand, to get food for the people, that they may do, when they come to Gibeah of Benjamin, according to all the folly that they have worked in Israel."