יָרַק

But the LORD answered Moses, “If her father had but spit in her face, would she not have been in disgrace for seven days? Let her be confined outside the camp for seven days; after that she may be brought back in.”

…his brother’s widow shall go up to him in the presence of the elders, remove his sandal, spit in his face, and declare, “This is what is done to the man who will not maintain his brother’s line.”