Dissemble is a verb that means to conceal one's true motives or feelings.
Our word of the day comes from the Latin word dissimulare (dee seem ooh LAR ay) which means ‘to disguise’ or ‘conceal.’
When Cory supported the store’s opening, he tried to dissemble the reasons for his support. But he couldn’t conceal those reasons from us. We knew he was one of the store’s chief investors.