Source : Webster's Revised Unabridged Dictionary (1913)

Leasing \Leas"ing\, n. [AS. le['a]sung, fr. le['a]s loose,
   false, deceitful. See {-less}, {Loose}, a.]
   The act of lying; falsehood; a lie or lies. [Archaic]
   --Spenser.

         Thou shalt destroy them that speak leasing. --Ps. v. 6.

         Blessed be the lips that such a leasing told.
                                                  --Fairfax.

   {Leasing making} (Scots Law), the uttering of lies or libels
      upon the personal character of the sovereign, his court,
      or his family. --Bp. Burnet.