（mraks!a）. 'concealing， hypocrisy.' One of the lesser defilement elements in the Abhidharmako/sa-bha^sya; one of the twenty secondary defilements 随烦恼 in the doctrine of the Yoga^ca^ra school. The mental function of trying to hide one's mistakes. This element is influenced by the elements of covetousness and ignorance. ［成唯识论T 1585.31.33b］