hypocrisy
hy.poc.ri.sy \hip-'a:k-r*-se-\ n [ME ypocrisie, fr. OF, fr. LL hypocrisis, fr. Gk hypokrisis a]ct of playing a part on the stage, hypocrisy, fr. hypokrinesthai to answer, act on the stage, fr. hypo- + krinein to decide - more at CERTAIN : a feigning to be what one is not or to believe what one does not; esp : the false assumption of an appearance of virtue or religion