'Treason' in the Bible

Joram turned his {chariot} and fled and said to Ahaziah, "It's treason, Ahaziah!"

She looked, and there was the king standing by the pillar according to the custom. The commanders and the trumpeters [were] by the king, and all of the people of the land were rejoicing and blowing on the trumpets. Athaliah tore her clothes and she called, "Treason, treason!"