The Collaborative International Dictionary of English v.0.48:

Rabblement \Rab"ble*ment\ (r[a^]b"b'l*ment), n.
   A tumultuous crowd of low people; a rabble. "Rude rablement."
   --Spenser.
   [1913 Webster]

         And still, as he refused it, the rabblement hooted.
                                                  --Shak.
   [1913 Webster]