掩饰

掩饰	yǎn shì	to cover up / to conceal / to mask / to gloss over
掩	yǎn	to cover up; to conceal / to close (a door, book etc) / (coll.) to get (one's fingers etc) caught when closing a door or lid / (literary) to launch a surprise attack
饰	shì	decoration / ornament / to decorate / to adorn / to hide / to conceal (a fault) / excuse (to hide a fault) / to play a role (in opera) / to impersonate