Source : Webster's Revised Unabridged Dictionary (1913)

Quotha \Quoth"a\, interj. [For quoth'a, said he, 'a being
   corrupted from he.]
   Indeed; forsooth.

         To affront the blessed hillside drabs and thieves With
         mended morals, quotha, -- fine new lives ! --Mrs.
                                                  Browning.