To deceive， to trick. （ma^ya^， /sa^thya， avan~cana; Tib. sgyu）: 'deceit，' commonly expressed in literary Chinese as 欺. One of the lesser defilement elements 小烦恼地法 as listed in the Abhidharmako/sa-bha^sya 俱舍论， one of the twenty secondary defilements 随烦恼 in the doctrine of the Yoga^ca^ra school 瑜伽行派. The mental action of deceiving others by lying to them; acting virtuous when lacking virtue， adorning base qualities so that they will appear as excellent qualities. A sub-function of ignorance and covetousness. ［成唯识论T 1585.31.33b］