dissimulation
dissimulation , noun
[Latin dissimulatio: compare French dissimulation.]
The act of dissembling; a hiding under a false appearance; concealment by feigning; false pretension; hypocrisy.
Let love be without dissimulation.
Dissimulation... when a man lets fall signs and arguments that he is not that he is.
Simulation is a pretense of what is not, and dissimulation a concealment of what is.