'Covered' in the Bible

Mordecai came back to the king's gate, but Haman hurried to his house, mourning and having his head covered.

Then the king returned out of the palace garden into the place of the banquet of wine; and Haman had fallen on the couch where Esther was. Then the king said, "Will he even assault the queen in front of me in the house?" As the word went out of the king's mouth, they covered Haman's face.