lyingly

adv

1. In a lying manner; deceptively, mendaciously.

   “And now is there a third derivative From Mr. Colburn's composite, which late The Arch-Pirate Galignani hath prefixed, A spurious portrait to a faithless life, And bearing lyingly the libelled name Of Lawrence, impudently there insculpt.”

   “He didn't even save himself by lyingly claiming, as he several times did, that Osama bin Laden was hiding in Bosnia.”