Source : Webster's Revised Unabridged Dictionary (1913)

Lither \Li"ther\, a. [AS. ? bad, wicked.]
   Bad; wicked; false; worthless; slothful. [Obs.] --Chaucer.

         Not lither in business, fervent in spirit. --Bp.
                                                  Woolton.

   Note: Professor Skeat thinks `` the lither sky'' as found in
         Shakespeare's Henry VI. ((Part I. IY. YII., 21) means
         the stagnant or pestilential sky. -- {Li"ther*ly}, adv.
         [Obs.]. -- {Li"ther*ness}, n. [Obs.]