To give the lie to; to show to be false; to charge with falsehood; as, the heart belies the tongue. It is rarely used of declarations; but of appearances and facts which show that declarations, or certain appearances and pretences are false and hypocritical. Hence.

To counterfeit; to mimic; to feign resemblance. With dust, with horse’s hoofs, that beat the ground, And martial brass, belie the thunder’s sound.

To give a false representation. Should I do so, I should belie my thoughts.

To tell lies concerning; to calumniate by false reports. Thou dost belie him, Percy.

To fill with lies. Slander doth belie all corners of the world.